महाभारतः mahābhārataḥ - book-8, chapter-1, verse-14

ततः प्रववृते युद्धं तुमुलं रोमहर्षणम् ।
कुरूणां पाण्डवानां च परस्परवधैषिणाम् ॥१४॥

14. tataḥ pravavṛte yuddhaṁ tumulaṁ romaharṣaṇam ,
kurūṇāṁ pāṇḍavānāṁ ca parasparavadhaiṣiṇām.

14. tataḥ pravavṛte yuddham tumulam romaharṣaṇam
kurūṇām pāṇḍavānām ca parasparavadheṣiṇām

14. tataḥ tumulam romaharṣaṇam yuddham pravavṛte
kurūṇām pāṇḍavānām ca parasparavadheṣiṇām

14. Then the tumultuous, hair-raising battle commenced between the Kurus and the Pandavas, who desired to kill one another.

Words meanings summery:

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

• प्रववृते (pravavṛte) - it began, it commenced, it started

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

• तुमुलम् (tumulam) - tumultuous, fierce, violent, agitated

• रोमहर्षणम् (romaharṣaṇam) - hair-raising, causing thrill/horror, horrifying

• कुरूणाम् (kurūṇām) - of the Kurus

• पाण्डवानाम् (pāṇḍavānām) - of the Pandavas

• च (ca) - and, also

• परस्परवधेषिणाम् (parasparavadheṣiṇām) - of those desiring mutual destruction, of those wishing to kill each other

Words meanings and morphology

ततः (tataḥ) - then, thereupon, from that

(indeclinable)

प्रववृते (pravavṛte) - it began, it commenced, it started

(verb)

3rd person , singular, middle, perfect (liṭ) of vṛt

Prefix: pra

Root: vṛt (class 1)

Note: Form of √vṛt with prefix pra.

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

(noun)

Nominative, neuter, singular of yuddha

yuddha - battle, fight, war

Derived from the root √yudh (to fight).

Root: yudh (class 4)

तुमुलम् (tumulam) - tumultuous, fierce, violent, agitated

(adjective)

Nominative, neuter, singular of tumula

tumula - tumultuous, noisy, violent, agitated

Note: Agrees with yuddham.

रोमहर्षणम् (romaharṣaṇam) - hair-raising, causing thrill/horror, horrifying

(adjective)

Nominative, neuter, singular of romaharṣaṇa

romaharṣaṇa - causing the hair to stand on end, thrilling, horrifying

Compound type : tatpuruṣa (roman+harṣaṇa)

• roman – hair of the body
  noun (neuter)
• harṣaṇa – causing joy, thrilling, causing excitement/standing on end
  adjective (neuter)
  Causative Noun/Adjective
  Derived from the causative of √hṛṣ (to be excited, to stand on end).
  Root: hṛṣ (class 1)

Note: Agrees with yuddham.

कुरूणाम् (kurūṇām) - of the Kurus

(proper noun)

Genitive, masculine, plural of kuru

kuru - Kuru (an ancient Vedic tribe, also a progenitor figure), a descendant of Kuru

पाण्डवानाम् (pāṇḍavānām) - of the Pandavas

(proper noun)

Genitive, masculine, plural of pāṇḍava

pāṇḍava - descendant of Pandu, son of Pandu, the Pandavas

Derived from Paṇḍu with a patronymic suffix -a.

च (ca) - and, also

(indeclinable)

परस्परवधेषिणाम् (parasparavadheṣiṇām) - of those desiring mutual destruction, of those wishing to kill each other

(adjective)

Genitive, masculine, plural of parasparavadheṣin

parasparavadheṣin - desiring mutual destruction

Compound type : tatpuruṣa (paraspara+vadheṣin)

• paraspara – mutual, reciprocal, each other
  indeclinable
• vadheṣin – desiring killing, wishing for destruction
  adjective (masculine)
  Compound of vadha (killing) and eṣin (desiring).

Note: Agrees with kurūṇām and pāṇḍavānām.