महाभारतः mahābhārataḥ - book-7, chapter-158, verse-5

प्रभातमात्रे श्वोभूते केशवायार्जुनाय वा ।
शक्तिरेषा विमोक्तव्या कर्ण कर्णेति नित्यशः ॥५॥

5. prabhātamātre śvobhūte keśavāyārjunāya vā ,
śaktireṣā vimoktavyā karṇa karṇeti nityaśaḥ.

5. prabhāta-mātre śvaḥ bhūte keśavāya arjunāya vā
śaktiḥ eṣā vimoktavyā karṇa karṇa iti nityaśaḥ

5. śvaḥ bhūte prabhāta-mātre eṣā śaktiḥ keśavāya
vā arjunāya karṇa karṇa iti nityaśaḥ vimoktavyā

5. As soon as dawn breaks on the morrow, this weapon (śakti) must be discharged against Keśava (Kṛṣṇa) or Arjuna, with the constant exhortation, 'O Karṇa! O Karṇa!'

Words meanings summery:

• प्रभात-मात्रे (prabhāta-mātre) - as soon as dawn, at the mere dawn

• श्वः (śvaḥ) - tomorrow

• भूते (bhūte) - on the occurrence of the morrow (on the morrow, being, having happened)

• केशवाय (keśavāya) - against Keśava (Kṛṣṇa) (to/for Keśava)

• अर्जुनाय (arjunāya) - against Arjuna (to/for Arjuna)

• वा (vā) - or

• शक्तिः (śaktiḥ) - the divine power/weapon (śakti) (power, energy, divine weapon (śakti))

• एषा (eṣā) - this (feminine nominative singular)

• विमोक्तव्या (vimoktavyā) - must be released/discharged, ought to be discharged

• कर्ण (karṇa) - O Karṇa!

• कर्ण (karṇa) - O Karṇa!

• इति (iti) - marking quoted speech or manner of action (thus, so, in this manner)

• नित्यशः (nityaśaḥ) - constantly, always, repeatedly

Words meanings and morphology

प्रभात-मात्रे (prabhāta-mātre) - as soon as dawn, at the mere dawn

(noun)

Locative, neuter, singular of prabhāta-mātra

prabhāta-mātra - just dawn, as soon as morning

Compound type : tatpuruṣa (prabhāta+mātra)

• prabhāta – dawn, morning
  noun (neuter)
  Past Passive Participle
  From 'pra-' + root 'bhā-'
  Prefix: pra
  Root: bhā (class 2)
• mātra – mere, only, just
  adjective (neuter)

श्वः (śvaḥ) - tomorrow

(indeclinable)

भूते (bhūte) - on the occurrence of the morrow (on the morrow, being, having happened)

(adjective)

Locative, neuter, singular of bhūta

bhūta - been, become, occurred

Past Passive Participle

Formed from the root 'bhū-'

Root: bhū (class 1)

Note: Used in a locative absolute construction indicating time.

केशवाय (keśavāya) - against Keśava (Kṛṣṇa) (to/for Keśava)

(proper noun)

Dative, masculine, singular of keśava

keśava - Keśava (an epithet of Kṛṣṇa)

Note: Dative case used here to indicate direction or target.

अर्जुनाय (arjunāya) - against Arjuna (to/for Arjuna)

(proper noun)

Dative, masculine, singular of arjuna

arjuna - Arjuna (a Pandava prince)

Note: Dative case used here to indicate direction or target.

वा (vā) - or

(indeclinable)

शक्तिः (śaktiḥ) - the divine power/weapon (śakti) (power, energy, divine weapon (śakti))

(noun)

Nominative, feminine, singular of śakti

śakti - power, energy, capability, a divine weapon (śakti)

Root: śak (class 5)

एषा (eṣā) - this (feminine nominative singular)

(pronoun)

Nominative, feminine, singular of etad

etad - this, she, it (proximate demonstrative)

विमोक्तव्या (vimoktavyā) - must be released/discharged, ought to be discharged

(adjective)

Nominative, feminine, singular of vimoktavya

vimoktavya - to be released, to be discharged

Gerundive

Formed from the root 'muc-' with prefix 'vi-' using the suffix '-tavya'

Prefix: vi

Root: muc (class 6)

Note: Indicates obligation or necessity.

कर्ण (karṇa) - O Karṇa!

(proper noun)

Vocative, masculine, singular of karṇa

karṇa - Karṇa (a warrior's name)

कर्ण (karṇa) - O Karṇa!

(proper noun)

Vocative, masculine, singular of karṇa

karṇa - Karṇa (a warrior's name)

इति (iti) - marking quoted speech or manner of action (thus, so, in this manner)

(indeclinable)

नित्यशः (nityaśaḥ) - constantly, always, repeatedly

(indeclinable)