महाभारतः mahābhārataḥ - book-3, chapter-240, verse-19

हतस्य नरकस्यात्मा कर्णमूर्तिमुपाश्रितः ।
तद्वैरं संस्मरन्वीर योत्स्यते केशवार्जुनौ ॥१९॥

19. hatasya narakasyātmā karṇamūrtimupāśritaḥ ,
tadvairaṁ saṁsmaranvīra yotsyate keśavārjunau.

19. hatasya narakasya ātmā karṇamūrtim upāśritaḥ tat
vairam saṃsmaran vīra yotsyate keśava arjunau

19. The soul (ātman) of the slain demon Naraka has entered Karṇa's body. Remembering that enmity, O hero, he will fight Keśava (Krishna) and Arjuna.

Words meanings summery:

• हतस्य (hatasya) - of the slain (demon Naraka) (of the killed, of the slain)

• नरकस्य (narakasya) - of the demon Naraka (of Naraka (a demon), of hell)

• आत्मा (ātmā) - the soul (ātman) (soul, self, spirit, essence (ātman))

• कर्णमूर्तिम् (karṇamūrtim) - Karṇa's body (the body/form of Karṇa)

• उपाश्रितः (upāśritaḥ) - entered (taken refuge in, resorted to, entered)

• तत् (tat) - that (enmity) (that, that one)

• वैरम् (vairam) - enmity (enmity, hostility, hatred)

• संस्मरन् (saṁsmaran) - remembering (remembering, recollecting)

• वीर (vīra) - O hero (O hero, brave one)

• योत्स्यते (yotsyate) - will fight

• केशव (keśava) - Keśava (Krishna) (Keśava (an epithet of Krishna))

• अर्जुनौ (arjunau) - Arjuna (and Keśava) (Arjuna (dual))

Words meanings and morphology

हतस्य (hatasya) - of the slain (demon Naraka) (of the killed, of the slain)

(adjective)

Genitive, masculine, singular of hata

hata - killed, slain, destroyed

Past Passive Participle

Derived from root han (to strike, to kill)

Root: han (class 2)

Note: Modifies 'narakasya'.

नरकस्य (narakasya) - of the demon Naraka (of Naraka (a demon), of hell)

(proper noun)

Genitive, masculine, singular of naraka

naraka - hell, underworld, a demon (specifically Naraka, slain by Krishna)

आत्मा (ātmā) - the soul (ātman) (soul, self, spirit, essence (ātman))

(noun)

Nominative, masculine, singular of ātman

ātman - soul, self, spirit, individual essence, vital breath (ātman)

Root: an (class 2)

Note: Subject of the sentence.

कर्णमूर्तिम् (karṇamūrtim) - Karṇa's body (the body/form of Karṇa)

(noun)

Accusative, feminine, singular of karṇamūrti

karṇamūrti - form of Karṇa, body of Karṇa

Compound type : ṣaṣṭhī-tatpuruṣa (karṇa+mūrti)

• karṇa – Karṇa (a proper name)
  proper noun (masculine)
• mūrti – form, body, embodiment, image
  noun (feminine)
  Root: mūrch (class 1)

Note: Object of 'upāśritaḥ'.

उपाश्रितः (upāśritaḥ) - entered (taken refuge in, resorted to, entered)

(adjective)

Nominative, masculine, singular of upāśrita

upāśrita - taken refuge in, resorted to, dependent on, entered

Past Passive Participle

Derived from upa-ā-śri (to resort to, to depend on)

Prefixes: upa+ā

Root: śri (class 1)

Note: Agrees with 'ātmā'.

तत् (tat) - that (enmity) (that, that one)

(pronoun)

Nominative, neuter, singular of tad

tad - that, that one

Note: Modifies 'vairam'.

वैरम् (vairam) - enmity (enmity, hostility, hatred)

(noun)

Accusative, neuter, singular of vaira

vaira - enmity, hostility, hatred, vengeance

Note: Object of 'saṃsmaran'.

संस्मरन् (saṁsmaran) - remembering (remembering, recollecting)

(adjective)

Nominative, masculine, singular of saṃsmarat

saṁsmarat - remembering, recollecting

Present Active Participle

Derived from sam-smṛ (to remember, recollect)

Prefix: sam

Root: smṛ (class 1)

वीर (vīra) - O hero (O hero, brave one)

(noun)

Vocative, masculine, singular of vīra

vīra - hero, brave, valorous

योत्स्यते (yotsyate) - will fight

(verb)

3rd person , singular, ātmanepada, future (lṛṭ) of yudh

Future Tense

Derived from root yudh (to fight)

Root: yudh (class 4)

Note: The subject is Karṇa (i.e., Naraka's soul).

केशव (keśava) - Keśava (Krishna) (Keśava (an epithet of Krishna))

(proper noun)

Accusative, masculine, dual of keśava

keśava - Keśava (an epithet of Vishnu/Krishna), having beautiful hair, slayer of the demon Keśī

Note: Part of the dual compound, referring to both Keśava and Arjuna.

अर्जुनौ (arjunau) - Arjuna (and Keśava) (Arjuna (dual))

(proper noun)

Accusative, masculine, dual of arjuna

arjuna - Arjuna (a proper name), white, bright

Note: Completes the dual compound 'keśavārjunau'.