# أحد
## Arabic
### Etymology 1.1

Related to the root و ح د (w ḥ d) of وَاحِد (wāḥid, “one”), from Proto-Semitic *ʾaḥad-. Cognate with Hebrew אֶחָד (ekhád, “one”).

#### Pronunciation

* IPA: /ʔa.ħad/

#### Noun

أَحَد • (ʔaḥad) m (plural آحَاد (ʔāḥād), feminine إِحْدَى (ʔiḥdā))
* one
    أَحَدٌ وَعِشْرُونَ ― ʾaḥadun wa-ʿišrūna ― twenty-one (literally, “one and twenty”)
    إِحْدَى وَعِشْرُونَ ― ʾiḥdā wa-ʿišrūna ― twenty-one (literally, “one and twenty”)
    أَحَدَ عَشَرَ ― ʔaḥada ʕašara ― eleven
    إِحْدَى عَشْرَةَ ― ʔiḥdā ʕašrata ― eleven
* one of [with genitive]

##### Declension
#### Noun

أَحَد • (ʔaḥad) m (plural آحَاد (ʔāḥād) or أُحْدَان (ʔuḥdān))
* Sunday

##### Declension
#### Noun

أَحَد • (ʔaḥad) m
* (chiefly in the negative) a person; somebody, someone; anybody, anyone
** 609–632 CE, Qur'an, 112:1-4:قُلْ هُوَ ٱللَّهُ أَحَدٌ ٱللَّهُ ٱلصَّمَدُ لَمْ يَلِدْ وَلَمْ يُولَدْ وَلَمْ يَكُن لَهُۥ كُفُوًا أَحَدٌqul huwa l-lahu ʔaḥadun l-lahu ṣ-ṣamadu lam yalid walam yūlad walam yakun lahū kufuwan ʔaḥadunSay, ˹O Prophet,˺ “He is Allah—One ˹and Indivisible˺; Allah—the Sustainer ˹needed by all˺. He has never had offspring, nor was He born. And there is none comparable to Him.

#### Adjective

أَحَد • (ʔaḥad)
* one
** 609–632 CE, Qur'an, 112:1-4:قُلْ هُوَ ٱللَّهُ أَحَدٌ ٱللَّهُ ٱلصَّمَدُ لَمْ يَلِدْ وَلَمْ يُولَدْ وَلَمْ يَكُن لَهُۥ كُفُوًا أَحَدٌqul huwa l-lahu ʔaḥadun l-lahu ṣ-ṣamadu lam yalid walam yūlad walam yakun lahū kufuwan ʔaḥadunSay, ˹O Prophet,˺ “He is Allah—One ˹and Indivisible˺; Allah—the Sustainer ˹needed by all˺. He has never had offspring, nor was He born. And there is none comparable to Him.

##### Derived terms

* أَحَدِيّ (ʔaḥadiyy)
* أَحَدِيَّة (ʔaḥadiyya)

##### Related terms

* أُحَدِيّ (ʔuḥadiyy)
* آحَاد (ʔāḥād)
** آحَادِيّ (ʔāḥādiyy)
* أَحَّدَ (ʔaḥḥada, “unite, unify”)

### Etymology 1.2
#### Verb

أحد (form I)
* أَحِدُ (ʔaḥidu) /ʔa.ħi.du/: first-person singular non-past active indicative of وَحَدَ (waḥada)
* أَحِدَ (ʔaḥida) /ʔa.ħi.da/: first-person singular non-past active subjunctive of وَحَدَ (waḥada)
* أَحِدْ (ʔaḥid) /ʔa.ħid/: first-person singular non-past active jussive of وَحَدَ (waḥada)

### Etymology 2.1
#### Verb

أَحَدَّ • (ʔaḥadda) IV (non-past يُحِدُّ (yuḥiddu), verbal noun إِحْدَاد (ʔiḥdād))
* to sharpen

##### Conjugation
### Etymology 2.2

Elative of حَادّ (ḥādd, “sharp, vehement”) and حَدّ (ḥadd, “violent, passionate”).

#### Pronunciation

* IPA: /ʔa.ħadd/

#### Adjective

أَحَدّ • (ʔaḥadd) (feminine حُدَّى (ḥuddā), masculine plural أَحَدُّون (ʔaḥaddūn) or أَحَادّ (ʔaḥādd), feminine plural حُدَّيَات (ḥuddayāt))
* elative degree of حَادّ (ḥādd):
** more acute, sharper, more cutting; most acute, sharpest, most cutting; very acute, sharp or cutting
** more vehement; most vehement; very vehement
* elative degree of حَدّ (ḥadd):
** more violent, more passionate; most violent, most passionate; very violent, very passionate
* fierce
* (wolf) with sharp teeth

##### Declension
### Etymology 2.3
#### Verb

أحد (form I)
* أَحُدُّ (ʔaḥuddu) /ʔa.ħud.du/: first-person singular non-past active indicative of حَدَّ (ḥadda)
* أُحَدُّ (ʔuḥaddu) /ʔu.ħad.du/: first-person singular non-past passive indicative of حَدَّ (ḥadda)
* أَحُدَّ (ʔaḥudda) /ʔa.ħud.da/: first-person singular non-past active subjunctive/jussive of حَدَّ (ḥadda)
* أُحَدَّ (ʔuḥadda) /ʔu.ħad.da/: first-person singular non-past passive subjunctive/jussive of حَدَّ (ḥadda)
* أَحُدِّ (ʔaḥuddi) /ʔa.ħud.di/: first-person singular non-past active jussive of حَدَّ (ḥadda)
* أُحَدِّ (ʔuḥaddi) /ʔu.ħad.di/: first-person singular non-past passive jussive of حَدَّ (ḥadda)
* أَحِدُّ (ʔaḥiddu) /ʔa.ħid.du/: first-person singular non-past active indicative of حَدَّ (ḥadda)
* أَحِدَّ (ʔaḥidda) /ʔa.ħid.da/: first-person singular non-past active subjunctive/jussive of حَدَّ (ḥadda)
* أَحِدِّ (ʔaḥiddi) /ʔa.ħid.di/: first-person singular non-past active jussive of حَدَّ (ḥadda)

### Etymology 3
#### Proper noun

أُحُد • (ʔuḥud) m
* a mountain north of Medina, Saudi Arabia