महाभारतः mahābhārataḥ - book-8, chapter-63, verse-63

तद्भीरुसंत्रासकरं युद्धं समभवत्तदा ।
अन्योन्यस्पर्धिनोर्वीर्ये शक्रशम्बरयोरिव ॥६३॥

63. tadbhīrusaṁtrāsakaraṁ yuddhaṁ samabhavattadā ,
anyonyaspardhinorvīrye śakraśambarayoriva.

63. tat bhīrusaṃtrāsakaram yuddham samabhavat tadā
anyonyaśpardhinoḥ vīrye śakraśambarayoḥ iva

63. tadā tat bhīrusaṃtrāsakaram yuddham samabhavat
iva anyonyaśpardhinoḥ śakraśambarayoḥ vīrye

63. Then that battle, terrifying to the faint-hearted, began. It was like the conflict between Śakra (Indra) and Śambara, who were rivals in prowess.

Words meanings summery:

• तत् (tat) - that (that, it)

• भीरुसंत्रासकरम् (bhīrusaṁtrāsakaram) - terrifying to the faint-hearted (causing fear to cowards, terrifying to cowards)

• युद्धम् (yuddham) - battle (battle, fight, war)

• समभवत् (samabhavat) - began (occurred, happened, came to be, began)

• तदा (tadā) - then (then, at that time)

• अन्योन्यश्पर्धिनोः (anyonyaśpardhinoḥ) - of two rivals (of two competing with each other, of two rivals)

• वीर्ये (vīrye) - in prowess (in valor, in power, in prowess)

• शक्रशम्बरयोः (śakraśambarayoḥ) - of Śakra (Indra) and Śambara (of Indra and Shambara)

• इव (iva) - like (like, as if, as)

Words meanings and morphology

तत् (tat) - that (that, it)

(pronoun)

Nominative, neuter, singular of tad

tad - that, he, she, it

Demonstrative pronoun.

Note: Qualifies 'yuddham'.

भीरुसंत्रासकरम् (bhīrusaṁtrāsakaram) - terrifying to the faint-hearted (causing fear to cowards, terrifying to cowards)

(adjective)

Nominative, neuter, singular of bhīrusaṃtrāsakara

bhīrusaṁtrāsakara - causing fear to the timid, terrifying to cowards

A tatpuruṣa compound (bhīru + saṃtrāsa + kara). 'Kara' means 'maker, doer of'.

Compound type : tatpuruṣa (bhīru+saṃtrāsa+kara)

• bhīru – timid, cowardly, fearful
  adjective (masculine)
  Root: bhī (class 3)
• saṃtrāsa – terror, fright, alarm
  noun (masculine)
  Prefix: sam
  Root: tras (class 4)
• kara – maker, doer, causing
  noun (masculine)
  Root: kṛ (class 8)

Note: Qualifies 'yuddham'.

युद्धम् (yuddham) - battle (battle, fight, war)

(noun)

Nominative, neuter, singular of yuddha

yuddha - battle, fight, war

Past Passive Participle (originally from yudh, used as noun)

From root 'yudh' (to fight).

Root: yudh (class 4)

समभवत् (samabhavat) - began (occurred, happened, came to be, began)

(verb)

3rd person , singular, active, imperfect (laṅ) of saṃbhū

Imperfect active, 3rd person singular

Root 'bhū' (to be) with prefix 'sam'. Imperfect tense (laṅ).

Prefix: sam

Root: bhū (class 1)

तदा (tadā) - then (then, at that time)

(indeclinable)

An adverb of time.

अन्योन्यश्पर्धिनोः (anyonyaśpardhinoḥ) - of two rivals (of two competing with each other, of two rivals)

(adjective)

Genitive, masculine, dual of anyonyaśpardhin

anyonyaśpardhin - rivalling each other, mutually competing

Compound of 'anyonya' (each other) and 'śpardhin' (competing).

Compound type : tatpuruṣa (anyonya+śpardhin)

• anyonya – each other, mutual
  pronoun (masculine)
• śpardhin – competing, rival
  adjective (masculine)
  Derived from root 'spardh' (to compete).
  Root: spardh (class 1)

वीर्ये (vīrye) - in prowess (in valor, in power, in prowess)

(noun)

Locative, neuter, singular of vīrya

vīrya - valor, strength, power, energy, prowess

From 'vīra' (hero).

Note: Describes the aspect of rivalry.

शक्रशम्बरयोः (śakraśambarayoḥ) - of Śakra (Indra) and Śambara (of Indra and Shambara)

(proper noun)

Genitive, masculine, dual of śakraśambara

śakraśambara - Indra and Shambara

A dvandva compound of two proper nouns.

Compound type : dvandva (śakra+śambara)

• śakra – Indra, powerful one
  proper noun (masculine)
  Root: śak (class 5)
• śambara – Shambara (a demon)
  proper noun (masculine)

Note: Refers to the legendary rivals.

इव (iva) - like (like, as if, as)

(indeclinable)

A particle of comparison.