महाभारतः mahābhārataḥ - book-7, chapter-10, verse-38

अर्जुनः केशवस्यात्मा कृष्णोऽप्यात्मा किरीटिनः ।
अर्जुने विजयो नित्यं कृष्णे कीर्तिश्च शाश्वती ॥३८॥

38. arjunaḥ keśavasyātmā kṛṣṇo'pyātmā kirīṭinaḥ ,
arjune vijayo nityaṁ kṛṣṇe kīrtiśca śāśvatī.

38. arjunaḥ keśavasya ātmā kṛṣṇaḥ api ātmā kirīṭinaḥ
arjune vijayaḥ nityam kṛṣṇe kīrtiḥ ca śāśvatī

38. arjunaḥ keśavasya ātmā kṛṣṇaḥ api kirīṭinaḥ ātmā
arjune nityam vijayaḥ kṛṣṇe ca śāśvatī kīrtiḥ

38. Arjuna is the very essence (ātman) of Keśava, and Krishna, in turn, is the essence (ātman) of the crowned one (Arjuna). Victory is always found in Arjuna, and eternal glory is found in Krishna.

Words meanings summery:

• अर्जुनः (arjunaḥ) - Arjuna

• केशवस्य (keśavasya) - of Keśava (Krishna)

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

• कृष्णः (kṛṣṇaḥ) - Krishna

• अपि (api) - in turn, also (also, even, too)

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

• किरीटिनः (kirīṭinaḥ) - of the crowned one (Arjuna) (of the crowned one)

• अर्जुने (arjune) - in Arjuna

• विजयः (vijayaḥ) - victory (victory, triumph)

• नित्यम् (nityam) - always (always, perpetually, eternally)

• कृष्णे (kṛṣṇe) - in Krishna

• कीर्तिः (kīrtiḥ) - glory (fame, glory, renown)

• च (ca) - and (and, also)

• शाश्वती (śāśvatī) - eternal (eternal, perpetual, constant)

Words meanings and morphology

अर्जुनः (arjunaḥ) - Arjuna

(proper noun)

Nominative, masculine, singular of arjuna

arjuna - Arjuna (one of the Pandava brothers), white, clear

केशवस्य (keśavasya) - of Keśava (Krishna)

(proper noun)

Genitive, masculine, singular of keśava

keśava - Keśava (an epithet of Krishna, lit. 'long-haired' or 'slayer of the demon Keśī')

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

(noun)

Nominative, masculine, singular of ātman

ātman - self, soul, essence, spirit, individual soul, supreme self

कृष्णः (kṛṣṇaḥ) - Krishna

(proper noun)

Nominative, masculine, singular of kṛṣṇa

kṛṣṇa - Krishna (an incarnation of Vishnu), dark, black

अपि (api) - in turn, also (also, even, too)

(indeclinable)

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

(noun)

Nominative, masculine, singular of ātman

ātman - self, soul, essence, spirit, individual soul, supreme self

किरीटिनः (kirīṭinaḥ) - of the crowned one (Arjuna) (of the crowned one)

(adjective)

Genitive, masculine, singular of kirīṭin

kirīṭin - crowned, wearing a diadem; an epithet of Arjuna

Derived from kirīṭa (crown) with suffix -in

Note: Acts as a noun here, referring to Arjuna.

अर्जुने (arjune) - in Arjuna

(proper noun)

Locative, masculine, singular of arjuna

arjuna - Arjuna (one of the Pandava brothers), white, clear

विजयः (vijayaḥ) - victory (victory, triumph)

(noun)

Nominative, masculine, singular of vijaya

vijaya - victory, triumph, conquest, superiority

Derived from vi- + ji- (to conquer)

Prefix: vi

Root: ji (class 1)

नित्यम् (nityam) - always (always, perpetually, eternally)

(adjective)

Accusative, neuter, singular of nitya

nitya - constant, perpetual, eternal, always existing

Note: Used adverbially.

कृष्णे (kṛṣṇe) - in Krishna

(proper noun)

Locative, masculine, singular of kṛṣṇa

kṛṣṇa - Krishna (an incarnation of Vishnu), dark, black

कीर्तिः (kīrtiḥ) - glory (fame, glory, renown)

(noun)

Nominative, feminine, singular of kīrti

kīrti - fame, glory, renown, reputation

Derived from root kṛ- (to praise)

Root: kṛ (class 8)

च (ca) - and (and, also)

(indeclinable)

Note: Post-positive conjunction.

शाश्वती (śāśvatī) - eternal (eternal, perpetual, constant)

(adjective)

Nominative, feminine, singular of śāśvata

śāśvata - eternal, perpetual, permanent, constant

Note: Agrees with kīrtiḥ.