महाभारतः mahābhārataḥ - book-9, chapter-18, verse-37

गजाश्वरथिभिर्हीनास्त्यक्तात्मानः पदातयः ।
एकविंशतिसाहस्राः संयुगायावतस्थिरे ॥३७॥

37. gajāśvarathibhirhīnāstyaktātmānaḥ padātayaḥ ,
ekaviṁśatisāhasrāḥ saṁyugāyāvatasthire.

37. gajāśvarathibhiḥ hīnāḥ tyaktātmānaḥ padātayaḥ
ekaviṃśatisāhasrāḥ saṃyugāya avatasthire

37. gajāśvarathibhiḥ hīnāḥ tyaktātmānaḥ
ekaviṃśatisāhasrāḥ padātayaḥ saṃyugāya avatasthire

37. Twenty-one thousand foot-soldiers, devoid of elephants, horses, and chariots, and having abandoned all hope for their own lives, stood firm for battle.

Words meanings summery:

• गजाश्वरथिभिः (gajāśvarathibhiḥ) - devoid of elephants, horses, and chariots (by elephants, horses, and charioteers)

• हीनाः (hīnāḥ) - devoid of (deprived, destitute, devoid of, left)

• त्यक्तात्मानः (tyaktātmānaḥ) - having abandoned all hope for their own lives (those who have abandoned their selves/lives)

• पदातयः (padātayaḥ) - foot-soldiers (foot-soldiers, infantry)

• एकविंशतिसाहस्राः (ekaviṁśatisāhasrāḥ) - twenty-one thousand

• संयुगाय (saṁyugāya) - for battle (for battle, for war)

• अवतस्तिरे (avatastire) - stood firm (they stood, they took position, they remained)

Words meanings and morphology

गजाश्वरथिभिः (gajāśvarathibhiḥ) - devoid of elephants, horses, and chariots (by elephants, horses, and charioteers)

(noun)

Instrumental, masculine, plural of gajāśvarathi

gajāśvarathi - elephants, horses, and charioteers; relating to elephants, horses, and chariots

Compound type : dvandva (gaja+aśva+rathi)

• gaja – elephant
  noun (masculine)
• aśva – horse
  noun (masculine)
• rathi – charioteer, warrior in a chariot
  noun (masculine)

हीनाः (hīnāḥ) - devoid of (deprived, destitute, devoid of, left)

(adjective)

Nominative, masculine, plural of hīna

hīna - deprived, destitute, left, abandoned, inferior

Past Passive Participle

from root hā (to abandon, quit) + kta suffix

Root: hā (class 3)

त्यक्तात्मानः (tyaktātmānaḥ) - having abandoned all hope for their own lives (those who have abandoned their selves/lives)

(adjective)

Nominative, masculine, plural of tyaktātman

tyaktātman - one who has abandoned their self/life, self-sacrificing, desperate

Compound of tyakta (P.P.P. from tyaj) and ātman

Compound type : bahuvrīhi (tyakta+ātman)

• tyakta – abandoned, forsaken, left
  adjective (masculine)
  Past Passive Participle
  from root tyaj (to abandon) + kta suffix
  Root: tyaj (class 1)
• ātman – self, soul, essence, body, mind (ātman)
  noun (masculine)
  Root: an (class 2)

पदातयः (padātayaḥ) - foot-soldiers (foot-soldiers, infantry)

(noun)

Nominative, masculine, plural of padāti

padāti - foot-soldier, infantryman, pedestrian

एकविंशतिसाहस्राः (ekaviṁśatisāhasrāḥ) - twenty-one thousand

(adjective)

Nominative, masculine, plural of ekaviṃśatisāhasra

ekaviṁśatisāhasra - twenty-one thousand

compound of eka (one), viṃśati (twenty), and sāhasra (thousand)

Compound type : dvandva (eka+viṃśati+sāhasra)

• eka – one, single
  numeral (masculine)
• viṃśati – twenty
  numeral (feminine)
• sāhasra – thousand, consisting of a thousand
  adjective (masculine)
  from sahasra (thousand)

संयुगाय (saṁyugāya) - for battle (for battle, for war)

(noun)

Dative, masculine, singular of saṃyuga

saṁyuga - battle, war, encounter

Prefix: sam

Root: yuj (class 7)

अवतस्तिरे (avatastire) - stood firm (they stood, they took position, they remained)

(verb)

3rd person , plural, middle, perfect (liṭ) of avasthā

perfect 3rd person plural

root sthā (to stand) with upasarga ava, perfect tense, Atmanepada

Prefix: ava

Root: sthā (class 1)