महाभारतः mahābhārataḥ - book-9, chapter-9, verse-21

विशस्तं भ्रातरं दृष्ट्वा कर्णपुत्रौ महारथौ ।
सुषेणः सत्यसेनश्च मुञ्चन्तौ निशिताञ्शरान् ॥२१॥

21. viśastaṁ bhrātaraṁ dṛṣṭvā karṇaputrau mahārathau ,
suṣeṇaḥ satyasenaśca muñcantau niśitāñśarān.

21. viśastam bhrātaram dṛṣṭvā karṇaputrau mahārathau
suṣeṇaḥ satyasenaḥ ca muñcantau niśitān śarān

21. viśastam bhrātaram dṛṣṭvā karṇaputrau mahārathau
suṣeṇaḥ ca satyasenaḥ niśitān śarān muñcantau

21. Having seen their slain brother, the two great charioteers, Suṣeṇa and Satyasena, sons of Karṇa, began releasing sharp arrows.

Words meanings summery:

• विशस्तम् (viśastam) - slain, killed, cut down

• भ्रातरम् (bhrātaram) - (Citrasena) (brother)

• दृष्ट्वा (dṛṣṭvā) - having seen

• कर्णपुत्रौ (karṇaputrau) - Suṣeṇa and Satyasena (the two sons of Karṇa)

• महारथौ (mahārathau) - the two great warriors

• सुषेणः (suṣeṇaḥ) - (one of Karṇa's sons) (Suṣeṇa)

• सत्यसेनः (satyasenaḥ) - (one of Karṇa's sons) (Satyasena)

• च (ca) - and

• मुञ्चन्तौ (muñcantau) - firing, shooting (arrows) (releasing, discharging)

• निशितान् (niśitān) - sharp (arrows) (sharpened, keen)

• शरान् (śarān) - arrows

Words meanings and morphology

विशस्तम् (viśastam) - slain, killed, cut down

(participle)

Accusative, masculine, singular of viśasta

viśasta - slain, killed, cut up, sacrificed

past passive participle

derived from root 'śaṃs' with prefix 'vi'

Prefix: vi

Root: śaṃs (class 1)

भ्रातरम् (bhrātaram) - (Citrasena) (brother)

(noun)

Accusative, masculine, singular of bhrātṛ

bhrātṛ - brother

दृष्ट्वा (dṛṣṭvā) - having seen

(indeclinable)

gerund/absolutive

derived from root 'dṛś' with suffix 'tvā'

Root: dṛś (class 1)

Note: The action performed by 'karṇaputrau'.

कर्णपुत्रौ (karṇaputrau) - Suṣeṇa and Satyasena (the two sons of Karṇa)

(noun)

Nominative, masculine, dual of karṇaputra

karṇaputra - son of Karṇa

Compound type : tatpuruṣa (karṇa+putra)

• karṇa – ear; name of a hero in the Mahābhārata
  proper noun (masculine)
• putra – son
  noun (masculine)

Note: Subject of the implied action, and core of the dual nominative.

महारथौ (mahārathau) - the two great warriors

(noun)

Nominative, masculine, dual of mahāratha

mahāratha - great warrior, one who can fight 10,000 archers

Compound type : karmadhāraya (mahā+ratha)

• mahā – great, mighty, large
  adjective
• ratha – chariot, warrior (by extension)
  noun (masculine)

Note: Qualifies 'karṇaputrau'.

सुषेणः (suṣeṇaḥ) - (one of Karṇa's sons) (Suṣeṇa)

(proper noun)

Nominative, masculine, singular of suṣeṇa

suṣeṇa - name of a son of Karṇa

Note: One of the two named subjects. This nominative singular is part of a compound nominative dual subject, effectively listing the members.

सत्यसेनः (satyasenaḥ) - (one of Karṇa's sons) (Satyasena)

(proper noun)

Nominative, masculine, singular of satyasena

satyasena - name of a son of Karṇa

Note: The second named subject.

च (ca) - and

(indeclinable)

मुञ्चन्तौ (muñcantau) - firing, shooting (arrows) (releasing, discharging)

(participle)

Nominative, masculine, dual of muñcat

muñcat - releasing, letting go, discharging

present active participle

derived from root 'muc' with 'ant' suffix, conjugated as present active participle

Root: muc (class 6)

Note: Describes the action of Suṣeṇa and Satyasena.

निशितान् (niśitān) - sharp (arrows) (sharpened, keen)

(participle)

Accusative, masculine, plural of niśita

niśita - sharpened, keen, sharp

past passive participle

derived from root 'śo' with prefix 'ni'

Prefix: ni

Root: śo (class 4)

शरान् (śarān) - arrows

(noun)

Accusative, masculine, plural of śara

śara - arrow, reed

Note: Object of the participle 'muñcantau'.