महाभारतः mahābhārataḥ - book-7, chapter-91, verse-54

ततः प्रववृते युद्धं कुरूणां सात्वतस्य च ।
द्रोणस्य च रणे राजन्घोरं देवासुरोपमम् ॥५४॥

54. tataḥ pravavṛte yuddhaṁ kurūṇāṁ sātvatasya ca ,
droṇasya ca raṇe rājanghoraṁ devāsuropamam.

54. tataḥ pravavṛte yuddham kurūṇām sātvatasya ca
droṇasya ca raṇe rājan ghoram devāsurupamam

54. rājan tataḥ kurūṇām ca sātvatasya ca droṇasya
raṇe ghoram devāsurupamam yuddham pravavṛte

54. Then, O King, a terrible battle, comparable to that between deities (devas) and demons (asuras), commenced on the battlefield involving the Kurus, the Sātvata, and Droṇa.

Words meanings summery:

• ततः (tataḥ) - then (then, thereupon, from that)

• प्रववृते (pravavṛte) - began (began, commenced, turned forward)

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

• कुरूणाम् (kurūṇām) - of the Kurus (of the Kurus, of the descendants of Kuru)

• सात्वतस्य (sātvatasya) - of the Sātvata (Satyaki) (of the Sātvata, of Yuyudhāna (Satyaki))

• च (ca) - and (and, also)

• द्रोणस्य (droṇasya) - of Droṇa

• च (ca) - and (and, also)

• रणे (raṇe) - on the battlefield (in battle, on the battlefield, in conflict)

• राजन् (rājan) - O King (addressing Dhṛtarāṣṭra) (O King)

• घोरम् (ghoram) - terrible, fierce (terrible, fierce, dreadful)

• देवासुरुपमम् (devāsurupamam) - comparable to that between deities (devas) and demons (asuras) (resembling the conflict between deities (devas) and demons (asuras))

Words meanings and morphology

ततः (tataḥ) - then (then, thereupon, from that)

(indeclinable)

प्रववृते (pravavṛte) - began (began, commenced, turned forward)

(verb)

3rd person , singular, middle, past perfect (liṭ) of pravṛt

Perfect (Liṭ), 3rd person singular, Middle voice

Derived from root vṛt (class 1, ātmanepada) with upasarga pra-. Reduplicated perfect form.

Prefix: pra

Root: vṛt (class 1)

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

(noun)

Nominative, neuter, singular of yuddha

yuddha - battle, war, fight

Derived from root yudh (to fight).

Root: yudh (class 4)

Note: Can also be accusative singular.

कुरूणाम् (kurūṇām) - of the Kurus (of the Kurus, of the descendants of Kuru)

(proper noun)

Genitive, masculine, plural of kuru

kuru - a descendant of Kuru, the Kauravas

सात्वतस्य (sātvatasya) - of the Sātvata (Satyaki) (of the Sātvata, of Yuyudhāna (Satyaki))

(proper noun)

Genitive, masculine, singular of sātvata

sātvata - a descendant of Satvata, a name for Yuyudhāna/Satyaki

च (ca) - and (and, also)

(indeclinable)

द्रोणस्य (droṇasya) - of Droṇa

(proper noun)

Genitive, masculine, singular of droṇa

droṇa - name of a warrior and teacher (Droṇācārya)

च (ca) - and (and, also)

(indeclinable)

रणे (raṇe) - on the battlefield (in battle, on the battlefield, in conflict)

(noun)

Locative, masculine, singular of raṇa

raṇa - battle, war, conflict

Root: raṇ (class 1)

राजन् (rājan) - O King (addressing Dhṛtarāṣṭra) (O King)

(noun)

Vocative, masculine, singular of rājan

rājan - king, ruler

घोरम् (ghoram) - terrible, fierce (terrible, fierce, dreadful)

(adjective)

Nominative, neuter, singular of ghora

ghora - terrible, dreadful, fierce, frightful

Note: Agrees with yuddham. Can also be accusative singular.

देवासुरुपमम् (devāsurupamam) - comparable to that between deities (devas) and demons (asuras) (resembling the conflict between deities (devas) and demons (asuras))

(adjective)

Nominative, neuter, singular of devāsurupama

devāsurupama - resembling that between devas and asuras

Compound type : bahuvrīhi (deva+asura+upama)

• deva – deity, god
  noun (masculine)
  Root: div (class 4)
• asura – demon, anti-god
  noun (masculine)
• upama – likeness, resemblance, comparison
  adjective
  Prefix: upa

Note: Agrees with yuddham. Can also be accusative singular.