महाभारतः mahābhārataḥ - book-6, chapter-86, verse-18

निपतद्भिस्तथा तैश्च हयसंघैः परस्परम् ।
शुश्रुवे दारुणः शब्दः सुपर्णपतने यथा ॥१८॥

18. nipatadbhistathā taiśca hayasaṁghaiḥ parasparam ,
śuśruve dāruṇaḥ śabdaḥ suparṇapatane yathā.

18. nipatadbhiḥ tathā taiḥ ca hayasaṃghaiḥ parasparam
śuśruve dāruṇaḥ śabdaḥ suparṇapatane yathā

18. tathā taiḥ ca parasparam nipatadbhiḥ hayasaṃghaiḥ
dāruṇaḥ śabdaḥ śuśruve suparṇapatane yathā

18. And by those horse battalions falling upon each other in that manner, a terrible sound was heard, just as in the fall of Suparṇa (Garuda).

Words meanings summery:

• निपतद्भिः (nipatadbhiḥ) - by those falling, by the ones falling

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

• तैः (taiḥ) - by those, with those

• च (ca) - and, also

• हयसंघैः (hayasaṁghaiḥ) - by horse troops, with horse battalions

• परस्परम् (parasparam) - mutually, reciprocally, each other

• शुश्रुवे (śuśruve) - was heard, it was heard

• दारुणः (dāruṇaḥ) - terrible, dreadful, fierce

• शब्दः (śabdaḥ) - sound, noise

• सुपर्णपतने (suparṇapatane) - in the fall of Suparṇa (Garuda)

• यथा (yathā) - as, just as, according to

Words meanings and morphology

निपतद्भिः (nipatadbhiḥ) - by those falling, by the ones falling

(adjective)

Instrumental, masculine, plural of nipatant

nipatant - falling, descending

Present Active Participle

Prefix: ni

Root: pat (class 1)

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

(indeclinable)

तैः (taiḥ) - by those, with those

(pronoun)

Instrumental, masculine, plural of tad

tad - that, those

च (ca) - and, also

(indeclinable)

हयसंघैः (hayasaṁghaiḥ) - by horse troops, with horse battalions

(noun)

Instrumental, masculine, plural of hayasaṃgha

hayasaṁgha - multitude of horses, horse troop

Compound type : tatpurusha (haya+saṃgha)

• haya – horse
  noun (masculine)
• saṃgha – assembly, crowd, troop, multitude
  noun (masculine)
  Prefix: sam
  Root: han (class 2)

परस्परम् (parasparam) - mutually, reciprocally, each other

(indeclinable)

शुश्रुवे (śuśruve) - was heard, it was heard

(verb)

3rd person , singular, passive, Perfect (Lit) of śru

Root: śru (class 5)

Note: Can be Perfect Middle or Passive. Contextually, Passive is more appropriate ('was heard').

दारुणः (dāruṇaḥ) - terrible, dreadful, fierce

(adjective)

Nominative, masculine, singular of dāruṇa

dāruṇa - terrible, dreadful, harsh, fierce

शब्दः (śabdaḥ) - sound, noise

(noun)

Nominative, masculine, singular of śabda

śabda - sound, noise, word

सुपर्णपतने (suparṇapatane) - in the fall of Suparṇa (Garuda)

(noun)

Locative, neuter, singular of suparṇapatana

suparṇapatana - the falling of Suparṇa (Garuda)

Compound type : tatpurusha (suparṇa+patana)

• suparṇa – good-winged, an epithet of Garuda, a mythical bird
  noun (masculine)
• patana – falling, a fall, descent
  noun (neuter)
  Root: pat (class 1)

यथा (yathā) - as, just as, according to

(indeclinable)