महाभारतः mahābhārataḥ - book-12, chapter-103, verse-18

अपामिव महावेगस्त्रस्ता मृगगणा इव ।
दुर्निवार्यतमा चैव प्रभग्ना महती चमूः ॥१८॥

18. apāmiva mahāvegastrastā mṛgagaṇā iva ,
durnivāryatamā caiva prabhagnā mahatī camūḥ.

18. apām iva mahāvegaḥ trastā mṛgagaṇāḥ iva
durnivāryatamā ca eva prabhagnā mahatī camūḥ

18. mahatī camūḥ apām mahāvegaḥ iva trastā
mṛgagaṇāḥ iva durnivāryatamā ca eva prabhagnā

18. Like a mighty current of water, and like terrified herds of deer, that great army (camū) became extremely difficult to stop and was utterly shattered.

Words meanings summery:

• अपाम् (apām) - of waters, of rivers

• इव (iva) - like, as, as if

• महावेगः (mahāvegaḥ) - a great current, a mighty stream, a great force

• त्रस्ता (trastā) - terrified, frightened, panic-stricken

• मृगगणाः (mṛgagaṇāḥ) - herds of deer

• इव (iva) - like, as, as if

• दुर्निवार्यतमा (durnivāryatamā) - most difficult to stop, extremely hard to check

• च (ca) - and

• एव (eva) - indeed, certainly, only

• प्रभग्ना (prabhagnā) - utterly shattered, completely broken, routed

• महती (mahatī) - great, large, mighty

• चमूः (camūḥ) - army, host

Words meanings and morphology

अपाम् (apām) - of waters, of rivers

(noun)

Genitive, feminine, plural of ap

ap - water

इव (iva) - like, as, as if

(indeclinable)

महावेगः (mahāvegaḥ) - a great current, a mighty stream, a great force

(noun)

Nominative, masculine, singular of mahāvega

mahāvega - great current, mighty stream

Compound type : karmadhāraya (mahat+vega)

• mahat – great, large, mighty
  adjective (neuter)
• vega – speed, current, force, impetuosity
  noun (masculine)
  Root: vij (class 1)

त्रस्ता (trastā) - terrified, frightened, panic-stricken

(adjective)

Nominative, feminine, singular of trasta

trasta - terrified, frightened

Past Passive Participle

From root 'tras' (to tremble, to fear)

Root: tras (class 1)

Note: Modifies 'camūḥ'.

मृगगणाः (mṛgagaṇāḥ) - herds of deer

(noun)

Nominative, masculine, plural of mṛgagaṇa

mṛgagaṇa - herd of deer

Compound type : tatpurusha (mṛga+gaṇa)

• mṛga – deer, wild animal
  noun (masculine)
• gaṇa – herd, troop, multitude, collection
  noun (masculine)

इव (iva) - like, as, as if

(indeclinable)

दुर्निवार्यतमा (durnivāryatamā) - most difficult to stop, extremely hard to check

(adjective)

Nominative, feminine, singular of durnivāryatama

durnivāryatama - most difficult to stop

Superlative degree of durnivārya (difficult to stop)

Compound type : karmadhāraya (dur+nivārya+tama)

• dur – bad, difficult, ill
  indeclinable
• nivārya – to be stopped, to be checked, resistible
  adjective
  Gerundive
  From root 'vṛ' (to cover, restrain) with prefix 'ni'
  Prefix: ni
  Root: vṛ (class 5)
• tama – most, best (superlative suffix)
  suffix
  Superlative suffix.

Note: Modifies 'camūḥ'.

च (ca) - and

(indeclinable)

एव (eva) - indeed, certainly, only

(indeclinable)

प्रभग्ना (prabhagnā) - utterly shattered, completely broken, routed

(adjective)

Nominative, feminine, singular of prabhagna

prabhagna - broken, shattered, routed

Past Passive Participle

From root 'bhañj' (to break) with prefix 'pra'

Prefix: pra

Root: bhañj (class 7)

Note: Modifies 'camūḥ'.

महती (mahatī) - great, large, mighty

(adjective)

Nominative, feminine, singular of mahat

mahat - great, large, mighty

Note: Modifies 'camūḥ'.

चमूः (camūḥ) - army, host

(noun)

Nominative, feminine, singular of camū

camū - army, host, troop

Note: The main subject of the sentence.