महाभारतः mahābhārataḥ - book-5, chapter-8, verse-4

स्वदेशवेषाभरणा वीराः शतसहस्रशः ।
तस्य सेनाप्रणेतारो बभूवुः क्षत्रियर्षभाः ॥४॥

4. svadeśaveṣābharaṇā vīrāḥ śatasahasraśaḥ ,
tasya senāpraṇetāro babhūvuḥ kṣatriyarṣabhāḥ.

4. svadeśaveṣābharaṇāḥ vīrāḥ śatasahasraśaḥ
tasya senāpraṇetāraḥ babhūvuḥ kṣatriyarṣabhāḥ

4. Hundreds of thousands of warriors, bearing the attire and ornaments of their own countries, were among the leaders of his army, as they were the foremost of Kṣatriyas.

Words meanings summery:

• स्वदेशवेषाभरणाः (svadeśaveṣābharaṇāḥ) - having the attire and ornaments of their own countries

• वीराः (vīrāḥ) - heroes, brave men

• शतसहस्रशः (śatasahasraśaḥ) - by hundreds of thousands, in hundreds of thousands

• तस्य (tasya) - his, of him

• सेनाप्रणेतारः (senāpraṇetāraḥ) - leaders of the army

• बभूवुः (babhūvuḥ) - they became, they were

• क्षत्रियर्षभाः (kṣatriyarṣabhāḥ) - best of Kṣatriyas, foremost Kṣatriyas

Words meanings and morphology

स्वदेशवेषाभरणाः (svadeśaveṣābharaṇāḥ) - having the attire and ornaments of their own countries

(adjective)

Nominative, masculine, plural of svadeśaveṣābharaṇa

svadeśaveṣābharaṇa - having the attire and ornaments of one's own country

Compound type : bahuvrīhi (sva+deśa+veṣa+ābharaṇa)

• sva – one's own
  pronoun (masculine)
• deśa – country, region, place
  noun (masculine)
• veṣa – dress, attire, costume
  noun (masculine)
  from √viś 'to enter'
  Root: viś (class 6)
• ābharaṇa – ornament, decoration
  noun (neuter)
  from ā-√bhṛ 'to adorn'
  Prefix: ā
  Root: bhṛ (class 3)

वीराः (vīrāḥ) - heroes, brave men

(noun)

Nominative, masculine, plural of vīra

vīra - hero, brave, valiant man

शतसहस्रशः (śatasahasraśaḥ) - by hundreds of thousands, in hundreds of thousands

(indeclinable)

suffix -śaḥ indicating 'by groups of'

Note: formed from śatasahasra + śas

तस्य (tasya) - his, of him

(pronoun)

Genitive, masculine, singular of tad

tad - that, he, she, it

सेनाप्रणेतारः (senāpraṇetāraḥ) - leaders of the army

(noun)

Nominative, masculine, plural of senāpraṇetṛ

senāpraṇetṛ - leader of an army, commander

Compound type : ṣaṣṭhī-tatpuruṣa (senā+praṇetṛ)

• senā – army, host
  noun (feminine)
• praṇetṛ – leader, guide
  noun (masculine)
  from pra-√nī 'to lead'
  Prefix: pra
  Root: nī (class 1)

बभूवुः (babhūvuḥ) - they became, they were

(verb)

3rd person , plural, active, past perfect (lit) of bhū

Perfect Active

from √bhū, 3rd person plural

Root: bhū (class 1)

क्षत्रियर्षभाः (kṣatriyarṣabhāḥ) - best of Kṣatriyas, foremost Kṣatriyas

(noun)

Nominative, masculine, plural of kṣatriyarṣabha

kṣatriyarṣabha - chief of Kṣatriyas, best of warriors

Compound type : karma-dhāraya (kṣatriya+ṛṣabha)

• kṣatriya – member of the warrior caste
  noun (masculine)
• ṛṣabha – bull, chief, best
  noun (masculine)