महाभारतः mahābhārataḥ - book-8, chapter-56, verse-32

तेन शब्देन वित्रस्ता पाण्डवानां महाचमूः ।
कर्णमेकं रणे योधं मेनिरे तत्र शात्रवाः ॥३२॥

32. tena śabdena vitrastā pāṇḍavānāṁ mahācamūḥ ,
karṇamekaṁ raṇe yodhaṁ menire tatra śātravāḥ.

32. tena śabdena vitrastā pāṇḍavānām mahācamūḥ
karṇam ekam raṇe yodham menire tatra śātravāḥ

32. tena śabdena pāṇḍavānām mahācamūḥ vitrastā
tatra raṇe śātravāḥ karṇam ekam yodham menire

32. Greatly terrified by that sound, the vast army of the Pāṇḍavas, themselves the adversaries (śātravāḥ), then considered Karna alone to be the true warrior (yodha) on the battlefield.

Words meanings summery:

• तेन (tena) - by that

• शब्देन (śabdena) - by the sound, by the noise

• वित्रस्ता (vitrastā) - greatly terrified, extremely frightened

• पाण्डवानाम् (pāṇḍavānām) - of the Pāṇḍavas

• महाचमूः (mahācamūḥ) - great army, vast army

• कर्णम् (karṇam) - Karna

• एकम् (ekam) - Referring to Karna as the single most formidable warrior (one, alone, sole)

• रणे (raṇe) - in battle, on the battlefield

• योधम् (yodham) - warrior, fighter

• मेनिरे (menire) - they considered, they thought, they believed

• तत्र (tatra) - there, then, in that situation

• शात्रवाः (śātravāḥ) - Refers to the Pāṇḍavas themselves, from the perspective of their opponents, highlighting their fear and despair. (the enemies, the adversaries)

Words meanings and morphology

तेन (tena) - by that

(pronoun)

Instrumental, masculine/neuter, singular of tad

tad - that, he, she, it

शब्देन (śabdena) - by the sound, by the noise

(noun)

Instrumental, masculine, singular of śabda

śabda - sound, noise, word

वित्रस्ता (vitrastā) - greatly terrified, extremely frightened

(adjective)

Nominative, feminine, singular of vitrasta

vitrasta - greatly terrified, extremely frightened, alarmed

Past Passive Participle

Derived from prefix vi + root √tras 'to tremble, to fear'

Prefix: vi

Root: tras (class 4)

पाण्डवानाम् (pāṇḍavānām) - of the Pāṇḍavas

(noun)

Genitive, masculine, plural of pāṇḍava

pāṇḍava - descendant of Pāṇḍu, Pāṇḍava

Apatya (descendant) derivation from Pāṇḍu

महाचमूः (mahācamūḥ) - great army, vast army

(noun)

Nominative, feminine, singular of mahācamū

mahācamū - great army, large host

Compound type : tatpuruṣa (mahā+camū)

• mahā – great, large, mighty
  adjective
• camū – army, host, battalion
  noun (feminine)

कर्णम् (karṇam) - Karna

(proper noun)

Accusative, masculine, singular of karṇa

karṇa - Karna (name of a warrior); ear

एकम् (ekam) - Referring to Karna as the single most formidable warrior (one, alone, sole)

(adjective)

Accusative, masculine, singular of eka

eka - one, single, alone, unique

रणे (raṇe) - in battle, on the battlefield

(noun)

Locative, masculine/neuter, singular of raṇa

raṇa - battle, fight, war

योधम् (yodham) - warrior, fighter

(noun)

Accusative, masculine, singular of yodha

yodha - warrior, fighter, soldier

Root: yudh (class 4)

मेनिरे (menire) - they considered, they thought, they believed

(verb)

3rd person , plural, middle, perfect (lit) of √man

perfect middle

Perfect, 3rd person, plural, middle voice

Root: man (class 4)

तत्र (tatra) - there, then, in that situation

(indeclinable)

शात्रवाः (śātravāḥ) - Refers to the Pāṇḍavas themselves, from the perspective of their opponents, highlighting their fear and despair. (the enemies, the adversaries)

(noun)

Nominative, masculine, plural of śātru

śātru - enemy, foe, adversary