Root · 0 in the Quran · 13 in 7 texts of the library
عكس (root ks)
العين والكاف والسين أصل صحيح واحد يدل على مثل ما تقدم ذكره من التجمع والجمع قال الخليل العكيس من اللبن الحليب تصب عليه …
Ibn Fāris, Maqāyīs al-lugha
The family of the root
Patterns computed · our dataThe words of ع ك س that our sources attest: the root's letters in green, the added letters in gold.
12 words6 verbs2 verbal nouns2 participles1 intensive or elative1 other noun
- عَكْسopposite; contrary
- اِنْعَكَسَthe definition is of uniform, or general, application, and may become …
- مُنْعَكِسreflected
- عَكَسَhe reversed it
- تَعَكَّسَhe moved along like the viper in his gait
The whole family5 groups, by pattern; tap a pattern to see what it does
Verbs6عَكَسَ · اِنْعَكَسَ · عَكَّسَ
The root as an action: the bare Form I, and the Forms made by adding letters before, inside or after the root.grammar →
Form I vowels: فَعَلَ يَفْعِلُ (a – i; the imperfect from Lane's “aor.”)
Verbal nouns2عَكْس · تَعْكِيس
The action itself, named as a noun (maṣdar).grammar →
- عَكْسopposite; contraryautoForm I · Lane: inf. n.library ×6LaneIbn Fāris
- تَعْكِيسForm II · Lane: inf. n.Lane
Participles2مَعْكُوس · مُنْعَكِس
The one who does it, and the one it is done to.grammar →
- مَعْكُوسlanguage, or a sentence, inverted, reversed, converted, or transposedLanepassive, Form ILane
- مُنْعَكِسreflectedautoactive, Form VIIlibrary ×1
Intensives, qualities and the elative1عَكِيس
The quality carried far, held as a trait, or compared.grammar →
Reference
Why this shape?What each of the 12 patterns does
What each pattern does. The pattern gives a tendency, not a rule: many words have drifted into meanings of their own.
The pattern machinePour the root into a pattern; see whether the word exists
Choose a pattern; the root's letters pour into it. Then see whether the word exists in our sources. The machine makes shapes; only usage makes words.
Not in our sources. A possible shape, not a word we can show: the Quran, the library and Lane do not have it for this root.
Place noun with -a. The place noun with the feminine -a. Sometimes it is only a variant of mafʿal; often it names the place where a thing is found in abundance (maʾsada, 'a place full of lions'). So maktab is the place of writing, and maktaba, where writings are gathered: a library, a bookshop. Our summary AI
But: maktaba is not in our classical dictionaries for k-t-b: Lane and al-Jawharī give maktab ('a school'), none gives maktaba. Its sense of 'library, bookshop' fits the pattern of abundance, but that is our reading of the pattern, not a classical entry. Many mafʿala words are single items of usage (maqbara 'cemetery'), which the grammarians call heard, not formed by rule.
The grammarians on this pattern (4)
ما يكون مفعلة لازمة لها الهاء والفتحة … وذلك إذا أردت أن تكثر الشيء بالمكان، وذلك قولك: أرض مسبعة، ومأسدة
Chapter on what is mafʿala, with the -a and the a-vowel always: that is when you mean that a thing abounds in a place, as you say 'a land of many beasts of prey (masbaʿa), of many lions (maʾsada)' AI
Sībawayh (d. c. 180/796), al-Kitāb, ed. ʿAbd al-Salām Hārūn, 3rd ed. (Cairo: al-Khānjī, 1988), 4:94 · OpenITI line 21027–21028 ↗ · on this site · OpenITI RELEASE v2025.1.9, CC BY-NC-SA 4.0
و نحو المظنة و المقبرة فتحا و ضما ليس بقياس
and words like maẓinna and maqbara (with a or u) are not by rule AI
Ibn al-Ḥājib (d. 646/1249), al-Shāfiya fī ʿilm al-taṣrīf, ed. Ḥasan Aḥmad al-ʿUthmān (Mecca: al-Maktaba al-Makkiyya, 1995), 1:30 · OpenITI line 223 ↗ · on this site · OpenITI RELEASE v2025.1.9, CC BY-NC-SA 4.0
- “designate the place where the object signified by the noun from which they are formed, is found in large numbers or quantities” Wright, Grammar I, §247, p. 148 ↗ · on nouns of abundance, maf'ala · 3rd ed. (Cambridge, 1896) · public domain
- “Nouns of time and place not unfrequently take the feminine form” Wright, Grammar I, §225, p. 128 ↗ · on maf'ala as a variant of maf'al · 3rd ed. (Cambridge, 1896) · public domain
About thisWhat “attested” means here; the sources
Attested means found in our data: the Quranic Arabic Corpus (lemmas, verb Forms, participles, verbal nouns, plurals), the library's words (automatic analysis), Lane's Lexicon (his headwords, the Forms he numbers, the verbal nouns and plurals he names) and Ibn Fāris's entry. Nothing is generated for this list. Meanings are Lane's first gloss in his entry, or else the analyser's gloss (“auto”). Vowelling follows the corpus, then Lane, then the analyser; verbs are given in the regular perfect. Lane's Lexicon thins out after qāf, and a few of his entries cover several roots at once: those roots show no Lane. The patterns, written with ف ع ل, are computed by us.
The dictionaries
Ibn Fāris · 395العين والكاف والسين أصل صحيح واحد يدل على مثل ما تقدم ذكره من التجمع والجمع قال الخليل العكيس من اللبن الحليب تصب عليه الإهالة قال : — فلما سقيناها العكيس تملأت … مذاخرها وارفض رشحا وريدها … المذاخر الأمعاء التي تذخر الط
Ibn Fāris (d. 395/1004), Maqāyīs al-Lugha. Seeks each root's original sense (aṣl).
The same letters, turned
The same three letters in all six orders. Choose one.
ع ك س
العين والكاف والسين أصل صحيح واحد يدل على مثل ما تقدم ذكره من التجمع والجمع
ʿ-k-s is one sound root indicating the like of what was mentioned before, of gathering and collecting. AI
an entry in Ibn Fārislater sources onlyin none of them
Do these six share one core meaning?
Reference
About thisal-Khalīl, Ibn Jinnī, Ibn Fāris; the counts across the dictionary
al-Khalīl (d. c. 170/786), Kitāb al-ʿAyn, as transmitted by al-Layth: a two-letter word “turns in two ways”, a three-letter word “in six ways” (masdūsa), four letters in 24, five in 120; “its used forms are written down and its unused ones dropped” (line 975 ↗). The dictionary is built on this: each chapter takes a set of letters and names which orders are used (mustaʿmal) and which unused (muhmal). The ring shows that verdict, from the chapter heading as edited (documented in the text; how much of the book is al-Khalīl's own is disputed).
A reported total. al-Suyūṭī transmits, from Ḥamza al-Iṣfahānī, that al-Khalīl put the possible forms, used and unused, of two to five letters at 12,305,412 (al-Muzhir, line 1347 ↗). It is reported, not found in the ʿAyn. It equals exactly the arrangements of 2 to 5 different letters out of 28 (756 + 19,656 + 491,400 + 11,793,600); the breakdown printed beside it is corrupt, and al-Zubaydī's count, given next, differs (6,659,400).
Ibn Jinnī (d. 392/1002), al-Khaṣāʾiṣ, names the greater derivation (al-ishtiqāq al-akbar): bind a three-letter root and its six orders to one meaning, and bring stray members back “by the subtlety of the craft and interpretation” (line 7536 ↗). He says himself that it does not hold for every root (line 167 ↗; line 7603 ↗).
Ibn Fāris (d. 395/1004) gives each root its own aṣl and treats a rearranged word as maqlūb, “turned round”, and so not a root of its own: “j-b-dh is not a root, because it is a single word, turned round” (Maqāyīs, line 6147 ↗). The ring sets his aṣl for each order side by side; whether they meet is the question.
Neighbours on the ring differ by one swap of two letters.
The critique. A source quoted by al-Suyūṭī calls the greater derivation Ibn Jinnī's innovation, “not relied on in the language” (al-Muzhir, line 6159 ↗).
The other axis. The root's letters also go into patterns that keep their order and change the frame: the patterns (awzān) and the verb Forms I–X.
Across Ibn Fāris's dictionary. Of the 2,300 possible sets of three different sound letters (no hamza, w or y), 1,021 have at least one order as an entry. How many of their six orders are entries:
- 1 of 6319
- 2 of 6218
- 3 of 6164
- 4 of 6155
- 5 of 6107
- 6 of 658
- 1 of 6148
- 2 of 6108
- 3 of 6157
- 4 of 6179
- 5 of 6111
- 6 of 643
Of the orders al-Khalīl calls used, 2,097 are entries in Ibn Fāris and 267 are not; 17 that he calls unused are entries in Ibn Fāris.
Attested here means found in our digital texts (Ibn Fāris, Lisān al-ʿArab, Lane, the Quranic Arabic Corpus), with w and y kept apart and hamza spellings merged; it is our data, not a classical verdict. English beside the Arabic is AI translation. Sources and grades: docs/research/root-permutations.md.
Letters & sound
- عʿaynmiddle of the throat · voiced, in betweenSīb. · I. Jinnī
- كkāfback of the tongue · voiceless, stopSīb. · I. Jinnī
- سsīntongue-tip, by the front teeth · voiceless, continuantSīb. · I. Jinnī
How each letter is made, in brief, from Sībawayh's and Ibn Jinnī's own sentences (linked); their words are under Reference.
Sharing two of its three letters (computed; kinship of form, not of meaning)
Reference
How it is madeSībawayh and Ibn Jinnī · phonetics
English throughout: AI translation of the Arabic AI
ع
ومن أوسط الحلق مخرج العين والحاء
From the middle of the throat is the place of the ʿayn and the ḥāʾ. Sībawayh, lines 26548–26549 ↗
ومن وسط الحلق مخرج العين والحاء
From the middle of the throat is the place of the ʿayn and the ḥāʾ. Ibn Jinnī, line 970 ↗
ك
ومن أسفل من موضع القاف من اللسان قليلا ومما يليه من الحنك الأعلى مخرج الكاف
From a little lower on the tongue than the qāf's place, and the upper palate next to it, is the place of the kāf. Sībawayh, lines 26551–26552 ↗
ومن أسفل من ذلك وأدنى إلى مقدم الفم مخرج الكاف
From lower than that and nearer the front of the mouth is the place of the kāf. Ibn Jinnī, line 973 ↗
س
ومما بين طرف اللسان وفويق الثنايا مخرج الزاي، والسين، والصاد
From between the tip of the tongue and just above the front teeth is the place of the zāy, the sīn and the ṣād. Sībawayh, line 26560 ↗
ومما بين الثنايا وطرف اللسان، مخرج الصاد والزاي والسين
From between the front teeth and the tip of the tongue is the place of the ṣād, the zāy and the sīn. Ibn Jinnī, line 983 ↗
Sībawayh, al-Kitāb (ed. Hārūn) and Ibn Jinnī, Sirr ṣināʿat al-iʿrāb; OpenITI digital texts (CC BY-NC-SA 4.0). Full credits on each letter's page.
In the Breath of the All-MercifulIbn ʿArabī · metaphysics
English throughout: AI translation of the Arabic AI
ع
Level of existence: الطبيعة · Nature
Divine Name: الباطن · The Inward (al-Bāṭin)
Lunar mansion: الثريا · al-Thurayyā (the Pleiades)
Futūḥāt ch. 198, line 63825Spheres of its simples (ch. 2): 9 line 2572 ↗
ك
Level of existence: الكرسي والقدمين · the Footstool and the two Feet
Divine Name: الشكور · al-Shakūr, the Grateful
Lunar mansion: النثرة · al-Nathra
Futūḥāt ch. 198, line 62083Spheres of its simples (ch. 2): 10 line 2573 ↗
Nature (ch. 2)
المرتبة العشرية فحروفها حارة يابسة
The tenfold rank: its letters are hot and dry.
Ibn ʿArabī, al-Futūḥāt al-Makkiyya, line 2582س
Level of existence: ما ظهر في الماء · what appears in water
Divine Name: المحيي · al-Muḥyī, the Life-Giver
Lunar mansion: النعائم · al-Naʿāʾim
Futūḥāt ch. 198, line 62110Spheres of its simples (ch. 2): 9 line 2572 ↗
Nature (ch. 2)
السين والشين فطبعهما الحرارة واليبوسة
Sīn and shīn: their nature is heat and dryness.
Ibn ʿArabī, al-Futūḥāt al-Makkiyya, line 2581Meaning by vowelal-Dabbāgh · a visionary claim about a primordial “Syriac”, not historical Syriac
English throughout: AI translation of the Arabic AI
ع
With fatḥa ـَ
فهي اسم لقدوم أو رحيل.
It is a name for arrival or departure.
With ḍamma ـُ
فهي اسم للساكن في الذات التي تقوم به.
It is a name for that which dwells in the self and by which the self subsists.
With kasra ـِ
فهي اسم لخبث الذات.
It is a name for the foulness of the self.
ك
With fatḥa ـَ
فهي إشارة إلى حقيقة العبودية الكاملة.
It is an indication of the reality of perfect servanthood.
With ḍamma ـُ
فهي العبد الأسود أو القبيح.
It is the black or ugly slave/servant.
With kasra ـِ
فهي إشارة إلى إضافة العبودية إليك، وقال مرة أخرى: فهي إشارة منك إليك بالعبودية.
It is an indication of attributing servanthood to you. On another occasion he said: it is an indication from you to yourself of servanthood.
س
With fatḥa ـَ
فهي إشارة إلى الشيء المليح الذي من طبعه الرقة.
It is an indication of the comely thing whose nature is delicacy.
With ḍamma ـُ
فهي إشارة إلى الشيء القبيح الخشن، أو إشارة إلى سواد حسا ومعنى.
It is an indication of the ugly, rough thing, or of blackness, sensible and figurative.
With kasra ـِ
وبالكسر إشارة إلى الشيء الطابع وتكون الإشارة منه.
With kasra it is an indication of the impressing/stamping thing, and the indication proceeds from it.
Two-letter nucleus12 roots in Ibn Fāris’s chapterع ك
Ibn Fāris groups his roots under two-letter chapters (“the X and the Y and what makes them three”). These are the roots of this root's chapter with the core sense he gives each. Setting them side by side is our juxtaposition; he does not himself draw a shared meaning. His chapter heading, line 20021 ↗
- عكلالعين والكاف واللام أصل صحيح يدل على جمع وضمL20022
- عكمالعين والكاف والميم أصل صحيح يدل على ضم وجمع لشيء في وعاءL20035
- عكنالعين والكاف والنون أصل صحيح قريب من الذي قبلهL20059
- عكوالعين والكاف والحرف المعتل أصل صحيح يدل على تجمع وغلظ أيضا وهو قريب من الذي قبله العكوة أصل الذنب وعكوت ذنب الدابة إذا عطفت الذنب عند العكوة وعقدته ويL20066
- عكبالعين والكاف والباء أصل صحيح واحد وليس ببعيد من الباب الذي قبله بل يدل على تجمع أيضاL20075
- عكدالعين والكاف والدال أصل صحيح واحد يدل على مثل ما دل عليه الذي قبله فالعكدة أصل اللسان ويقال اعتكد الشيء إذا لزمهL20090
- عكرالعين والكاف والراء أصل صحيح واحد يدل على مثل ما دل عليه الذي قبله من التجمع والتراكمL20101
- عكزالعين والكاف والزاء أصيل يقرب من الباب قبلهL20116
- عكسالعين والكاف والسين أصل صحيح واحد يدل على مثل ما تقدم ذكره من التجمع والجمعL20119
- عكشالعين والكاف والشين أصل صحيح يدل على مثل ما دل عليه الذي تقدم من التجمعL20126
- عكصالعين والكاف والصاد قريب من الذي قبله إلا أن فيه زيادة معنى هي الشدةL20135
- عكفالعين والكاف والفاء أصل صحيح يدل على مقابلة وحبسQ 9 · L20137
In the sister scriptsHebrew ע כ ס/שSyriac ܥ ܟ ܣ/ܫ
| Arabic | ع ك س |
| Hebrew | ע כ ס/ש |
| Syriac | ܥ ܟ ܣ/ܫ |
| Ancient South Arabian (musnad) | 𐩲 𐩫 𐩯/𐩦 |
| Phoenician | 𐤏 𐤊 𐤎/𐤔 |
Letter for letter, by the regular sound correspondences of the Semitic languages (Arabic keeps several sounds the others merged). This shows how the root would be spelled; whether a related word exists is a separate question, answered in the Semitic lens. Where an Arabic sibilant (s, sh) continues two older sounds, both spellings are shown.
Reference