धातु - dhātu

W. D. Whitney, The roots


dhātu, sm. elemento delle parole, i.e. radice o tema grammaticale o verbale

IAST devanāgarī ṛ́ ā́ ī́ ṝ ū́ 1 ā᳴  
√aṅh अङ्ह् ‘be narrow or distressing’
Such a root is inferable from derivatives:
aṅhatí rv. aṅhú v.b. áñghri? b. + áhi v. +
áṅhas v. + aṅhīyas b.s. aghá v. + ahī rv.
The verb-form anāha rv1. is of wholly doubtful meaning and connection.
 
√ 1 akṣ अक्ष् ‘attain’
Present. [1.] ákṣat rv1. , akṣase e1.
Perfect. [ānakṣa,] ākṣāṇa? rv1.
Aorist. [3. ācikṣat. — ] 5. ākṣiṣus rv1.
[Future. akṣiṣyati, akṣayati; akṣitā, aṣṭvā.]
[Verbal Adjectives and Nouns. aṣṭa; akṣitvā, aṣṭvā]
[Secondary Conjugations: Passive, akṣya-. — Intensive — Desiderative, ācikṣiṣa-. — Causative, akṣaya-.]
Derivatives: akṣiṣiṣṭha jb.
A secondary root-form from √ 1 , aṅś, and occurring in a few isolated forms. Indra and Agni are called akṣiṣṭhāu vahiṣṭhāu devānām at jb. i. 304
 
√ 2 akṣ अक्ष् ‘mutilate’
Pres. [5.] -akṣṇoti etc. av. śb.
Verb. -aṣṭa v.b.s. 
Only used with prefix nis ; does not appear to have anything to do with the preceding root.
 
añg अञ्ग् Pres. [1.] añcati c1.
[Perf. etc. ānañga etc. etc.]
[Sec. Conj.: Caus. añgayati.]
A single occurrence, doubtless artificial, in the Nalodaya.
 
ac, añc अच्, अञ्च् ‘bend’
Pres. [1.] añcati etc. av. + , -te b. ; acati etc. v.b. , -te etc. av.b.s.
Perf. [ānañca,] acire jb.
[Aor. etc. añcit ; añciṣyati, añcitā.]
Verb, akná b.s. , acita e. , añcita e. +  [akta] ; -ácya v.b. ; -ā́cam b. .
Sec. Conj.: Pass, acyáte etc. v. +  [añcyate. — Desid. añciciṣa-.] — Caus. añcayati etc. c.
Deriv.: -anc v. + anká v. + áñcana v. + -añku- v. +
-añcin b.  áñkas rv.  -acana s. + akṣṇá b.s. 
—————————— -áñcas rv.
 
√aj अज् ‘drive’
Pres. [1.] ájati -te etc. v. +
Perf. ajus? rv1. [ājitha etc.]
Aor. 5. ajiṣus lśs1.
[Fut. ajiṣyati, ajitā.]
Verb. -ajita? śb. ; -ajya s.; -áje rv.
Sec. Conj.: Pass. ajyáte etc. rv. [ - Desid. ajijiṣa-.]
Deriv.:
ágra? v. + ajaka c. ájman v. -āja b. +
aj v. ájana v. + -ájya v.b. āJí v. +
-ajá v.+ -ájma rv. -ajvin sv.
The form ajus only by very doubtful conjecture to rv. v. 6. 10; ājiṣus variant to av. āviṣus; ajita in -prajita, possibly for prājita (or pra-jita, √ji?)
 
       
       
       
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