महाभारतः mahābhārataḥ - book-6, chapter-50, verse-81

त्रासितेषु च वीरेषु भीमेनाद्भुतकर्मणा ।
पुनरावर्तमानेषु विद्रवत्सु च संघशः ॥८१॥

81. trāsiteṣu ca vīreṣu bhīmenādbhutakarmaṇā ,
punarāvartamāneṣu vidravatsu ca saṁghaśaḥ.

81. trāsiteṣu ca vīreṣu bhīmena adbhutakarmaṇā
punar āvartamāneṣu vidravatsu ca saṃghaśaḥ

81. ca bhīmena adbhutakarmaṇā trāsiteṣu vīreṣu punar
āvartamāneṣu ca saṃghaśaḥ vidravatsu (satsu)

81. And as the heroes, terrified by Bhima, who performed wondrous deeds, were returning and fleeing in groups...

Words meanings summery:

• त्रासितेषु (trāsiteṣu) - among those who were terrified, when terrified

• च (ca) - and

• वीरेषु (vīreṣu) - among the heroes, warriors

• भीमेन (bhīmena) - by Bhima

• अद्भुतकर्मणा (adbhutakarmaṇā) - by one of wondrous deeds

• पुनर् (punar) - again, back

• आवर्तमानेषु (āvartamāneṣu) - among those returning, when returning

• विद्रवत्सु (vidravatsu) - among those fleeing, when fleeing

• च (ca) - and

• संघशः (saṁghaśaḥ) - in groups, in masses, in crowds

Words meanings and morphology

त्रासितेषु (trāsiteṣu) - among those who were terrified, when terrified

(adjective)

Locative, masculine, plural of trāsita

trāsita - terrified, frightened

Past Passive Participle

from causative root trās (to terrify)

Root: tras (class 1)

Note: Part of a locative absolute construction.

च (ca) - and

(indeclinable)

वीरेषु (vīreṣu) - among the heroes, warriors

(noun)

Locative, masculine, plural of vīra

vīra - hero, warrior, brave man

Note: Part of a locative absolute construction.

भीमेन (bhīmena) - by Bhima

(proper noun)

Instrumental, masculine, singular of bhīma

bhīma - terrible, formidable; a proper name (Bhima, one of the Pandavas)

अद्भुतकर्मणा (adbhutakarmaṇā) - by one of wondrous deeds

(adjective)

Instrumental, masculine, singular of adbhutakarman

adbhutakarman - one whose deeds are wondrous, performer of amazing acts

Compound type : bahuvrīhi (adbhuta+karman)

• adbhuta – wondrous, amazing, wonderful
  adjective
• karman – deed, act, action (karma)
  noun (neuter)
  Root: kṛ (class 8)

Note: Qualifies 'bhīmena'

पुनर् (punar) - again, back

(indeclinable)

आवर्तमानेषु (āvartamāneṣu) - among those returning, when returning

(adjective)

Locative, masculine, plural of āvartamāna

āvartamāna - returning, revolving, turning back

Present Middle Participle

from verb ā-vṛt (to return, to turn back)

Prefix: ā

Root: vṛt (class 1)

Note: Part of a locative absolute construction.

विद्रवत्सु (vidravatsu) - among those fleeing, when fleeing

(adjective)

Locative, masculine, plural of vidravat

vidravat - fleeing, running away, dispersing

Present Active Participle

from verb vi-dru (to run away, to flee)

Prefix: vi

Root: dru (class 1)

Note: Part of a locative absolute construction.

च (ca) - and

(indeclinable)

संघशः (saṁghaśaḥ) - in groups, in masses, in crowds

(indeclinable)

suffix -śaḥ indicating 'by groups'