महाभारतः mahābhārataḥ - book-9, chapter-8, verse-34

वर्तमाने तथा युद्धे निर्मर्यादे विशां पते ।
चतुरङ्गक्षये घोरे पूर्वं देवासुरोपमे ॥३४॥

34. vartamāne tathā yuddhe nirmaryāde viśāṁ pate ,
caturaṅgakṣaye ghore pūrvaṁ devāsuropame.

34. vartamāne tathā yuddhe nirmaryāde viśām pate
caturaṅgakṣaye ghore pūrvam devāsura upame

34. viśām pate,
tathā nirmaryāde caturaṅgakṣaye ghore pūrvam devāsurOpame yuddhe vartamāne

34. O Lord of the people, while that dreadful battle was ongoing—a boundless conflict leading to the destruction of the four-limbed army, and resembling the ancient war between the gods and asuras...

Words meanings summery:

• वर्तमाने (vartamāne) - existing, present, ongoing, while being

• तथा (tathā) - thus, so, in that manner

• युद्धे (yuddhe) - in the battle, in the war

• निर्मर्यादे (nirmaryāde) - boundless, unrestrained, without limits or rules

• विशाम् (viśām) - of the people, of the subjects

• पते (pate) - O Lord, O Master

• चतुरङ्गक्षये (caturaṅgakṣaye) - in the destruction of the four-limbed army

• घोरे (ghore) - dreadful, terrible, fearful

• पूर्वम् (pūrvam) - formerly, previously, ancient

• देवासुर उपमे (devāsura upame) - resembling that between gods and asuras

Words meanings and morphology

वर्तमाने (vartamāne) - existing, present, ongoing, while being

(adjective)

Locative, neuter, singular of vartamāna

vartamāna - existing, being, present

Present Active Participle

Derived from root 'vṛt' (to be, exist) with '-māna' suffix.

Root: vṛt (class 1)

तथा (tathā) - thus, so, in that manner

(indeclinable)

युद्धे (yuddhe) - in the battle, in the war

(noun)

Locative, neuter, singular of yuddha

yuddha - battle, war, fight

निर्मर्यादे (nirmaryāde) - boundless, unrestrained, without limits or rules

(adjective)

Locative, neuter, singular of nirmaryāda

nirmaryāda - without bounds, unlimited, lawless, immoderate

Compound type : bahuvrīhi (nir+maryādā)

• nir – without, free from, out of
  indeclinable
• maryādā – boundary, limit, rule, law
  noun (feminine)

विशाम् (viśām) - of the people, of the subjects

(noun)

Genitive, masculine, plural of viś

viś - people, community, subject (especially common people or vassals)

पते (pate) - O Lord, O Master

(noun)

Vocative, masculine, singular of pati

pati - master, lord, husband

चतुरङ्गक्षये (caturaṅgakṣaye) - in the destruction of the four-limbed army

(noun)

Locative, masculine, singular of caturaṅgakṣaya

caturaṅgakṣaya - destruction of the four-limbed army (elephants, chariots, cavalry, infantry)

Compound type : tatpuruṣa (caturaṅga+kṣaya)

• caturaṅga – four-limbed (referring to army components: elephants, chariots, cavalry, infantry)
  noun (neuter)
• kṣaya – destruction, decay, loss
  noun (masculine)

घोरे (ghore) - dreadful, terrible, fearful

(adjective)

Locative, neuter, singular of ghora

ghora - dreadful, terrible, fearful, formidable

पूर्वम् (pūrvam) - formerly, previously, ancient

(indeclinable)

देवासुर उपमे (devāsura upame) - resembling that between gods and asuras

(adjective)

Locative, neuter, singular of devāsurOpama

devāsurOpama - like the conflict of gods and asuras

Compound type : tatpuruṣa (deva+asura+upama)

• deva – god, deity
  noun (masculine)
• asura – demon, anti-god
  noun (masculine)
• upama – similar, resembling, comparison
  adjective (masculine/feminine/neuter)