महाभारतः mahābhārataḥ - book-5, chapter-10, verse-32

यत्तः सदाभवच्चापि शक्रोऽमर्षसमन्वितः ।
वृत्रस्य वधसंयुक्तानुपायाननुचिन्तयन् ।
रन्ध्रान्वेषी समुद्विग्नः सदाभूद्बलवृत्रहा ॥३२॥

32. yattaḥ sadābhavaccāpi śakro'marṣasamanvitaḥ ,
vṛtrasya vadhasaṁyuktānupāyānanucintayan ,
randhrānveṣī samudvignaḥ sadābhūdbalavṛtrahā.

32. yattaḥ sadā abhavat ca api śakraḥ
amarṣasamanvitaḥ vṛtrasya vadhasaṃyuktān
upāyān anucintayan randhrānveṣī
samudvignaḥ sadā abhūt balavṛtrahā

32. Indra, also known as the slayer of Bala and Vṛtra, was always diligent and filled with indignation. He was constantly contemplating the means to kill Vṛtra, searching for his weaknesses, and thus remained perpetually agitated.

Words meanings summery:

• यत्तः (yattaḥ) - striving, diligent, attentive, engaged

• सदा (sadā) - always, ever, constantly

• अभवत् (abhavat) - became, was

• च (ca) - and, also

• अपि (api) - also, even, too

• शक्रः (śakraḥ) - Indra (epithet)

• अमर्षसमन्वितः (amarṣasamanvitaḥ) - endowed with impatience, filled with indignation

• वृत्रस्य (vṛtrasya) - of Vṛtra

• वधसंयुक्तान् (vadhasaṁyuktān) - pertaining to the killing (of Vṛtra) (connected with killing)

• उपायान् (upāyān) - means, methods, expedients

• अनुचिन्तयन् (anucintayan) - contemplating, thinking about, reflecting on

• रन्ध्रान्वेषी (randhrānveṣī) - seeking vulnerabilities, searching for flaws

• समुद्विग्नः (samudvignaḥ) - agitated, distressed, worried

• सदा (sadā) - always, ever, constantly

• अभूत् (abhūt) - was, became

• बलवृत्रहा (balavṛtrahā) - Indra, as the slayer of Bala and Vṛtra (the killer of Bala and Vṛtra (an epithet of Indra))

Words meanings and morphology

यत्तः (yattaḥ) - striving, diligent, attentive, engaged

(adjective)

Nominative, masculine, singular of yatta

yatta - striving, diligent, attentive, engaged, prepared

Past Passive Participle

Derived from verbal root yat (to strive, endeavor) + suffix ta

Root: yat (class 1)

Note: Refers to Śakra (Indra).

सदा (sadā) - always, ever, constantly

(indeclinable)

अभवत् (abhavat) - became, was

(verb)

3rd person , singular, active, past imperfect (laṅ) of bhū

Past Imperfect Active

Imperfect (laṅ) formation from bhū

Root: bhū (class 1)

च (ca) - and, also

(indeclinable)

अपि (api) - also, even, too

(indeclinable)

शक्रः (śakraḥ) - Indra (epithet)

(proper noun)

Nominative, masculine, singular of śakra

śakra - Indra, powerful, capable

Root: śak (class 5)

Note: Refers to the deity Indra.

अमर्षसमन्वितः (amarṣasamanvitaḥ) - endowed with impatience, filled with indignation

(adjective)

Nominative, masculine, singular of amarṣasamanvita

amarṣasamanvita - filled with impatience, endowed with indignation

Compound type : tatpuruṣa (amarṣa+samanvita)

• amarṣa – impatience, indignation, anger
  noun (masculine)
  from a + mṛṣ (to bear, endure)
  Prefix: a
  Root: mṛṣ (class 1)
• samanvita – endowed with, accompanied by, connected with
  adjective (masculine)
  Past Passive Participle
  from sam + anu + i (to go)
  Prefixes: sam+anu
  Root: i (class 2)

Note: Modifies Śakra.

वृत्रस्य (vṛtrasya) - of Vṛtra

(proper noun)

Genitive, masculine, singular of vṛtra

vṛtra - Vṛtra (a Vedic demon)

Root: vṛ (class 5)

वधसंयुक्तान् (vadhasaṁyuktān) - pertaining to the killing (of Vṛtra) (connected with killing)

(adjective)

Accusative, masculine, plural of vadhasaṃyukta

vadhasaṁyukta - connected with killing, related to murder

Compound type : tatpuruṣa (vadha+saṃyukta)

• vadha – killing, slaying, murder
  noun (masculine)
  from root han (to strike, kill)
  Root: han (class 2)
• saṃyukta – joined, connected, endowed with
  adjective (masculine)
  Past Passive Participle
  from sam + yuj (to join)
  Prefix: sam
  Root: yuj (class 7)

Note: Modifies upāyān.

उपायान् (upāyān) - means, methods, expedients

(noun)

Accusative, masculine, plural of upāya

upāya - means, method, expedient, device

from upa + i (to go)

Prefix: upa

Root: i (class 2)

Note: Object of anucintayan.

अनुचिन्तयन् (anucintayan) - contemplating, thinking about, reflecting on

(adjective)

Nominative, masculine, singular of anucintayat

anucintayat - contemplating, thinking about, reflecting on

Present Active Participle

from anu + cint (to think)

Prefix: anu

Root: cint (class 10)

Note: Modifies Śakra (implied subject).

रन्ध्रान्वेषी (randhrānveṣī) - seeking vulnerabilities, searching for flaws

(adjective)

Nominative, masculine, singular of randhrānveṣin

randhrānveṣin - seeking vulnerabilities, searching for flaws

Agent Noun (derived from verb anveṣ with ṇin suffix)

from randhra + anu + iṣ (to seek)

Compound type : tatpuruṣa (randhra+anveṣin)

• randhra – hole, fault, defect, vulnerability
  noun (neuter)
• anveṣin – seeking, searching, investigating
  adjective (masculine)
  Agent Noun
  from anu + iṣ (to seek) + ṇin
  Prefix: anu
  Root: iṣ (class 4)

Note: Modifies Śakra.

समुद्विग्नः (samudvignaḥ) - agitated, distressed, worried

(adjective)

Nominative, masculine, singular of samudvigna

samudvigna - agitated, distressed, worried, anxious

Past Passive Participle

from sam + ut + vij (to be agitated)

Prefixes: sam+ut

Root: vij (class 6)

Note: Modifies Śakra.

सदा (sadā) - always, ever, constantly

(indeclinable)

अभूत् (abhūt) - was, became

(verb)

3rd person , singular, active, aorist (luṅ) of bhū

Aorist Active

Aorist (luṅ) formation from bhū

Root: bhū (class 1)

बलवृत्रहा (balavṛtrahā) - Indra, as the slayer of Bala and Vṛtra (the killer of Bala and Vṛtra (an epithet of Indra))

(proper noun)

Nominative, masculine, singular of balavṛtrahan

balavṛtrahan - killer of Bala and Vṛtra

Compound type : tatpuruṣa (bala+vṛtra+han)

• bala – Bala (a demon), strength, power
  proper noun (masculine)
• vṛtra – Vṛtra (a Vedic demon)
  proper noun (masculine)
  Root: vṛ (class 5)
• han – killer, slayer
  noun (masculine)
  Agent noun
  from root han (to strike, kill)
  Root: han (class 2)

Note: Epithet for Indra.