महाभारतः mahābhārataḥ - book-6, chapter-82, verse-42

प्रावर्तत नदी घोरा शोणितौघतरङ्गिणी ।
गोमायुगणसंकीर्णा क्षणेन रजनीमुखे ॥४२॥

42. prāvartata nadī ghorā śoṇitaughataraṅgiṇī ,
gomāyugaṇasaṁkīrṇā kṣaṇena rajanīmukhe.

42. prāvartata nadī ghorā śoṇitaughataraṅgiṇī
gomāyugaṇasaṃkīrṇā kṣaṇena rajanīmukhe

42. kṣaṇena rajanīmukhe ghorā śoṇitaughataraṅgiṇī gomāyugaṇasaṃkīrṇā nadī prāvartata.

42. At nightfall, in an instant, a terrible river, with waves of blood and teeming with packs of jackals, began to flow.

Words meanings summery:

• प्रावर्तत (prāvartata) - the river began to flow (began to flow, proceeded, occurred)

• नदी (nadī) - a river (of blood) (river)

• घोरा (ghorā) - a terrible river (terrible, dreadful, fierce)

• शोणितौघतरङ्गिणी (śoṇitaughataraṅgiṇī) - a river characterized by waves of blood-streams (having waves of blood-streams)

• गोमायुगणसंकीर्णा (gomāyugaṇasaṁkīrṇā) - a river crowded with packs of jackals (crowded with packs of jackals)

• क्षणेन (kṣaṇena) - in an instant, in a moment

• रजनीमुखे (rajanīmukhe) - at nightfall, at the beginning of the night

Words meanings and morphology

प्रावर्तत (prāvartata) - the river began to flow (began to flow, proceeded, occurred)

(verb)

3rd person , singular, middle, past imperfect (laṅ) of pravṛt

Root vṛt (to turn, to be) with prefix pra.

Prefix: pra

Root: vṛt (class 1)

नदी (nadī) - a river (of blood) (river)

(noun)

Nominative, feminine, singular of nadī

nadī - river

घोरा (ghorā) - a terrible river (terrible, dreadful, fierce)

(adjective)

Nominative, feminine, singular of ghora

ghora - terrible, dreadful, fierce, frightful, awful

शोणितौघतरङ्गिणी (śoṇitaughataraṅgiṇī) - a river characterized by waves of blood-streams (having waves of blood-streams)

(adjective)

Nominative, feminine, singular of śoṇitaughataraṅgiṇa

śoṇitaughataraṅgiṇa - having waves of streams of blood

Compound type : bahuvrihi (śoṇita+ogha+taraṅgiṇa)

• śoṇita – blood
  noun (neuter)
  Past Passive Participle
  Derived from root śoṇ (to redden), meaning reddened, hence blood.
  Root: śoṇ (class 1)
• ogha – stream, flood, torrent
  noun (masculine)
• taraṅgiṇa – having waves, undulating
  adjective (masculine)
  Derived from taraṅga (wave) with -in suffix.

गोमायुगणसंकीर्णा (gomāyugaṇasaṁkīrṇā) - a river crowded with packs of jackals (crowded with packs of jackals)

(adjective)

Nominative, feminine, singular of gomāyugaṇasaṃkīrṇa

gomāyugaṇasaṁkīrṇa - crowded or filled with multitudes of jackals

Compound type : tatpurusha (gomāyu+gaṇa+saṃkīrṇa)

• gomāyu – jackal, wolf
  noun (masculine)
• gaṇa – multitude, host, troop, pack
  noun (masculine)
• saṃkīrṇa – crowded, filled, mixed, confused
  participle (masculine)
  Past Passive Participle
  Derived from the root kīr (to scatter) with prefix sam.
  Root: kīr (class 6)

क्षणेन (kṣaṇena) - in an instant, in a moment

(noun)

Instrumental, masculine, singular of kṣaṇa

kṣaṇa - moment, instant, leisure

रजनीमुखे (rajanīmukhe) - at nightfall, at the beginning of the night

(noun)

Locative, neuter, singular of rajanīmukha

rajanīmukha - beginning of night, nightfall

Compound type : tatpurusha (rajanī+mukha)

• rajanī – night
  noun (feminine)
• mukha – mouth, face, opening, beginning, front
  noun (neuter)