महाभारतः mahābhārataḥ - book-5, chapter-153, verse-31

सेनापत्ये यदा राजा गाङ्गेयमभिषिक्तवान् ।
तदैतान्युग्ररूपाणि अभवञ्शतशो नृप ॥३१॥

31. senāpatye yadā rājā gāṅgeyamabhiṣiktavān ,
tadaitānyugrarūpāṇi abhavañśataśo nṛpa.

31. senāpatye yadā rājā gāṅgeyam abhiṣiktavān
tadā etāni ugrarūpāṇi abhavan śataśaḥ nṛpa

31. nṛpa yadā rājā gāṅgeyam senāpatye abhiṣiktavān
tadā etāni ugrarūpāṇi śataśaḥ abhavan

31. O King (nṛpa), when the monarch consecrated Gaṅgeya (gāṅgeya) as the commander-in-chief, then hundreds of these terrible forms (ugrarūpāṇi) appeared.

Words meanings summery:

• सेनापत्ये (senāpatye) - in the chief command of the army

• यदा (yadā) - when

• राजा (rājā) - king, monarch

• गाङ्गेयम् (gāṅgeyam) - Bhīṣma (son of Gaṅgā)

• अभिषिक्तवान् (abhiṣiktavān) - consecrated, installed

• तदा (tadā) - then, at that time

• एतानि (etāni) - these

• उग्ररूपाणि (ugrarūpāṇi) - terrible forms, dreadful appearances

• अभवन् (abhavan) - they became, they appeared, they occurred

• शतशः (śataśaḥ) - by hundreds, in hundreds

• नृप (nṛpa) - O King (vocative) (king)

Words meanings and morphology

सेनापत्ये (senāpatye) - in the chief command of the army

(noun)

Locative, neuter, singular of senāpatya

senāpatya - chief command of an army, generalship

Compound type : tatpurusha (senā+patya)

• senā – army, host
  noun (feminine)
• patya – rule, dominion, mastery
  noun (neuter)

यदा (yadā) - when

(indeclinable)

राजा (rājā) - king, monarch

(noun)

Nominative, masculine, singular of rājan

rājan - king, monarch

गाङ्गेयम् (gāṅgeyam) - Bhīṣma (son of Gaṅgā)

(proper noun)

Accusative, masculine, singular of gāṅgeya

gāṅgeya - son of Gaṅgā

अभिषिक्तवान् (abhiṣiktavān) - consecrated, installed

(participle)

Nominative, masculine, singular of abhiṣiktavat

abhiṣiktavat - one who has consecrated, having installed

Past Active Participle

Derived from root śic with prefix abhi, suffixed with ktavat

Prefix: abhi

Root: sic (class 6)

तदा (tadā) - then, at that time

(indeclinable)

एतानि (etāni) - these

(pronoun)

neuter, plural of etad

etad - this, these

उग्ररूपाणि (ugrarūpāṇi) - terrible forms, dreadful appearances

(noun)

neuter, plural of ugrarūpa

ugrarūpa - terrible form, dreadful appearance

Compound type : karmadhāraya (ugra+rūpa)

• ugra – terrible, fierce, formidable
  adjective
• rūpa – form, shape, appearance, nature
  noun (neuter)

अभवन् (abhavan) - they became, they appeared, they occurred

(verb)

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

Root: bhū (class 1)

शतशः (śataśaḥ) - by hundreds, in hundreds

(indeclinable)

नृप (nṛpa) - O King (vocative) (king)

(noun)

Vocative, masculine, singular of nṛpa

nṛpa - king, protector of men