धातु - dhātu

W. D. Whitney, The roots



√ ī, see √ 1 i.

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√īkṣ, ‘see’

Pres. [1.] ī́kṣate etc. v.+  -ti etc. b.+ 
Perf. īkṣā́ṁ cakre etc. b.+  īkṣāṁ cakrus e.
Aor. 1. āikṣi. ** c. , [āicikṣat.** —] 5. āikṣiṣi. etc. b. (āikṣīt. ** c.? 
Fut. **īkśiśyáte
etc. b.+ , -yáti b.  [— 2. īkṣitā. ]
Verb. ikṣiṭá b.+ ; īkṣitum e.+ , īkṣitvā b. ; ī́kṣya b.+ ; ī́kṣam b.s. 
Sec. Conj.: Pass. īkṣyate etc. s.+ , — Des. īcikṣiṣa- (in d.). — Caus., īkṣáyati etc. v.+ , -te av. , (īkṣayate s. )
Deriv.:

ī́kṣa b.+  īkṣin e.+ īkṣaṇa rv. ? s.+ -īkṣitavyà b.+
īkṣā b.+ -īkṣya e.  īkṣaṇīya e.+ īkṣitṛ c.
ī́kṣaka b.+   īkṣeṇyà rv. īcikṣiṣu c.


Only three occurrences in rv. , but growing rapidly common. Active forms sporadic.
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√īñkh, ‘swing’

Pres. [1.] īñkhati etc. c.  -te etc. aa. 
Sec. Conj.: Caus., īñkháyati -te etc. v.+ ,
Deriv.:

īñkha v.+  īñkhana c. īñkaya rv.
     


The form eñkṣva ab.  is false
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√īj, see √ej

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√īḍ, ‘praise’

Pres. [2.] ī́ṭṭe ī́ḍate etc. (ī́ḍiṣva) v.b.  [1.] īḍāmahe v.  īḍamāna s.
Perf. īḍe rv.  īḍire e.+  [—īḍāṁ cakre. —]
[Aor. etc. āiḍiṣṭa., īḍiṣyate, īḍitā.]
Verb. īḍitá v.+ ; īḍitum c. 
Sec. Conj.: Pass. īḍyate c. , [— Desid. īḍiḍiṣa-.] — Caus., āiḍayan c. 
Deriv.:

**ī́ḍ ** rv.  ī́ḍya v+ īḍitavya b. īḍénya v.b. **īḍitṛ́ ** av.
         


Only three occurrences in the later language.
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√īr, ‘set in motion’

Pres. [2.] ī́rte ī́rate etc. v.b.  (īráte b. ) — [1.] āírat etc. rv.  ī́rate **(3s.) av.
Perf. **īriré
v.  (erire rv. ) [—īrāṁ cakre. ]
[Aor. etc. āirirat, āiriṣṭa, īriṣyate, īritā.]
Verb. īrṇá b.+
Sec. Conj.: Caus. īráyati v.+ , -te etc. vb.  (īryate etc. b.+ ; īritá v.+ ; īriant m. ; īrayádhyāi rv. )
Deriv.:

**īra ** e.+  īrya b īrin e.+ īraṇa e+. **īritṛ ** u.
**-īraka ** c.  **īryā ** c.    **īraṇīya ** c.  **īrmá ** v.b. 


The form īryayati, doubtless false, is found once in śb.
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√īrṣy, ‘be jealous’

Pres. [2.] ī́rṣyati etc. b.s. 
Verb. īrṣyita c. 
Deriv.:

**īrṣyā́ ** av.  īrṣyin c. īrṣyú av.+ īrṣyitavya c.
**-īrṣyaka ** c.  **īrṣyālu ** c.     


Evidently a secondary root, but of doubtful origin (BR. from irasy). Not seldom written without the y in later works.
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√īś, ‘be master’

Pres. [2.] īṣṭe ī́śate (2s. ī́kṣe rv.  ī́śiṣe rv.s. ; ī́śe 3s. v.b. ; īśite u. ; īśidhve av. ) v.+  — [1.] īśate īśata v.b.u. 
Perf. ī́śiré ? rv. (erire rv. ) [—īśāṁ cakre. ]
[Aor. āiṣiṣṭa.]
Fut. 1. īśiṣyati u. , -te b. [— 2. īśitā.]
Verb. īśita u. 
Sec. Conj.: Caus. īráyati v.+ , -te etc. vb. (īryate etc. b.+ ; īritá v.+ ; īriant m. ; īrayádhyāi rv. )
Deriv.:

ī́ś b.  īśā́ av.+ īśana u. īśitṛ u.+ īśvará av.+
-īśá b.+  **īśin ** u.+  īśitavya c. -īśu v.+  


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√īṣ, eṣ, ‘move’

Pres. [2.] ī́ṣate etc. v.b.  -ti etc. v.b.u. ; —éśati etc.. av.
Perf. īṣé rv. (āíyes plpf. rv1. ) [—īṣāṁ cakre. ]
[Aor. etc. āiṣiṣṭa; īṣiṣyate; īṣitā.]
Verb. -īṣita v.b. 
Deriv.:

īṣā́? rv.  eṣá rv. -eṣṭi c. eṣṭṛ́ b.s.
       


Doubtless ultimately one with √1, 2 iṣ.
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√īh, ‘be eager’

Pres. [1.] ī́hate etc. b.+  -ti e.+. 
[Perf. īhāṁ cakre; āijihat, āihiṣṭa; īhiṣyate, īhitā. ]
Verb. īhita e.+ ; īhitum c. 
[Sec. Conj.: Desid. ījihiṣa-.Caus. īhaya-.]
Deriv.:

**īha ** c.  īhā e.+ īhana e. ehá av. ehas v.+
         


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W.D. Whitney - The roots, in costante lento aggiornamento
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