महाभारतः mahābhārataḥ - book-6, chapter-55, verse-12

वराश्वनरनागानां शरीरप्रभवा तदा ।
परलोकार्णवमुखी गृध्रगोमायुमोदिनी ॥१२॥

12. varāśvanaranāgānāṁ śarīraprabhavā tadā ,
paralokārṇavamukhī gṛdhragomāyumodinī.

12. vara-aśva-nara-nāgānām śarīra-prabhavā tadā
| para-loka-arṇava-mukhī gṛdhra-gomāyu-modinī

12. tadā vara-aśva-nara-nāgānām śarīra-prabhavā
para-loka-arṇava-mukhī gṛdhra-gomāyu-modinī (nadī) (prāvartata)

12. That river, originating from the bodies of excellent horses, men, and elephants, then faced the ocean of the other world, delighting vultures and jackals.

Words meanings summery:

• वर-अश्व-नर-नागानाम् (vara-aśva-nara-nāgānām) - of excellent horses, men, and elephants

• शरीर-प्रभवा (śarīra-prabhavā) - originating from bodies, born from bodies

• तदा (tadā) - then, at that time

• पर-लोक-अर्णव-मुखी (para-loka-arṇava-mukhī) - facing the ocean of the afterlife (whose mouth is the ocean of the other world)

• गृध्र-गोमायु-मोदिनी (gṛdhra-gomāyu-modinī) - delighting vultures and jackals

Words meanings and morphology

वर-अश्व-नर-नागानाम् (vara-aśva-nara-nāgānām) - of excellent horses, men, and elephants

(noun)

Genitive, masculine, plural of vara-aśva-nara-nāga

vara-aśva-nara-nāga - excellent horses, men, and elephants

Compound type : dvandva (vara-aśva+nara+nāga)

• vara – excellent, best, noble
  adjective (masculine)
• aśva – horse
  noun (masculine)
• nara – man, human
  noun (masculine)
• nāga – serpent, elephant
  noun (masculine)

शरीर-प्रभवा (śarīra-prabhavā) - originating from bodies, born from bodies

(adjective)

Nominative, feminine, singular of śarīra-prabhavā

śarīra-prabhava - originating from bodies

Compound type : tatpuruṣa (śarīra+prabhava)

• śarīra – body, corpse
  noun (neuter)
• prabhava – origin, source, birth, originating from
  noun (masculine)
  Derived from root √bhū (to be) with prefix pra-
  Prefix: pra
  Root: bhū (class 1)

तदा (tadā) - then, at that time

(indeclinable)

पर-लोक-अर्णव-मुखी (para-loka-arṇava-mukhī) - facing the ocean of the afterlife (whose mouth is the ocean of the other world)

(adjective)

Nominative, feminine, singular of para-loka-arṇava-mukha

para-loka-arṇava-mukha - having the ocean of the other world as its mouth/destination

Compound type : bahuvrīhi (para-loka-arṇava+mukha)

• para-loka – other world, afterlife
  noun (masculine)
• arṇava – ocean, sea
  noun (masculine)
• mukha – mouth, face, opening, entrance
  noun (neuter)

गृध्र-गोमायु-मोदिनी (gṛdhra-gomāyu-modinī) - delighting vultures and jackals

(adjective)

Nominative, feminine, singular of gṛdhra-gomāyu-modinī

gṛdhra-gomāyu-modin - delighting vultures and jackals

Compound type : tatpuruṣa (gṛdhra+gomāyu+modin)

• gṛdhra – vulture, greedy
  noun (masculine)
• gomāyu – jackal, fox
  noun (masculine)
• modin – rejoicing, delighting, gladdening
  adjective (masculine)
  Agent Noun
  Derived from root √mud (to rejoice) with suffix -in
  Root: mud (class 1)