महाभारतः mahābhārataḥ - book-12, chapter-330, verse-45

ततः स्वतेजसाविष्टाः केशा नारायणस्य ह ।
बभूवुर्मुञ्जवर्णास्तु ततोऽहं मुञ्जकेशवान् ॥४५॥

45. tataḥ svatejasāviṣṭāḥ keśā nārāyaṇasya ha ,
babhūvurmuñjavarṇāstu tato'haṁ muñjakeśavān.

45. tataḥ svatejasā āviṣṭāḥ keśāḥ nārāyaṇasya ha
babhūvuḥ muñjavarṇāḥ tu tataḥ aham muñjakeśavān

45. tataḥ nārāyaṇasya keśāḥ svatejasā āviṣṭāḥ ha
muñjavarṇāḥ babhūvuḥ tu tataḥ aham muñjakeśavān

45. Then, the hairs of (Viṣṇu) Nārāyaṇa, imbued with his own splendor, indeed became the color of muñja grass. Therefore, I (refer to this form as) Muñjakeśavān.

Words meanings summery:

• ततः (tataḥ) - then, thereupon, from that

• स्वतेजसा (svatejasā) - by his own splendor (referring to Nārāyaṇa) (by one's own splendor, by one's own power/energy)

• आविष्टाः (āviṣṭāḥ) - imbued (with splendor) (entered, possessed, imbued, pervaded)

• केशाः (keśāḥ) - hairs, locks of hair

• नारायणस्य (nārāyaṇasya) - of Nārāyaṇa

• ह (ha) - indeed, surely, verily (an emphatic particle)

• बभूवुः (babhūvuḥ) - they became, they have been

• मुञ्जवर्णाः (muñjavarṇāḥ) - muñja-colored, having the color of muñja grass (yellowish-white)

• तु (tu) - but, indeed, however, on the other hand

• ततः (tataḥ) - then, from that, therefore

• अहम् (aham) - I

• मुञ्जकेशवान् (muñjakeśavān) - referring to the transformed form or an epithet of Viṣṇu (those with muñja-like hair, (referring to) Muñjakeśava(s))

Words meanings and morphology

ततः (tataḥ) - then, thereupon, from that

(indeclinable)

स्वतेजसा (svatejasā) - by his own splendor (referring to Nārāyaṇa) (by one's own splendor, by one's own power/energy)

(noun)

Instrumental, neuter, singular of svatejas

svatejas - one's own splendor, inherent power, personal brilliance

Compound type : tatpuruṣa (sva+tejas)

• sva – self, own, one's own
  pronoun (masculine)
• tejas – splendor, brilliance, energy, power, fiery energy
  noun (neuter)

आविष्टाः (āviṣṭāḥ) - imbued (with splendor) (entered, possessed, imbued, pervaded)

(adjective)

Nominative, masculine, plural of āviṣṭa

āviṣṭa - entered, possessed, pervaded, imbued

Past Passive Participle

Derived from the root viś (to enter) with prefix ā-.

Prefix: ā

Root: viś (class 6)

Note: Agrees with 'keśāḥ'.

केशाः (keśāḥ) - hairs, locks of hair

(noun)

Nominative, masculine, plural of keśa

keśa - hair (of the head), mane

नारायणस्य (nārāyaṇasya) - of Nārāyaṇa

(proper noun)

Genitive, masculine, singular of nārāyaṇa

nārāyaṇa - Nārāyaṇa (a name of Viṣṇu, literally 'resting on the waters' or 'refuge of man')

ह (ha) - indeed, surely, verily (an emphatic particle)

(indeclinable)

बभूवुः (babhūvuḥ) - they became, they have been

(verb)

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

Perfect (Lit)

3rd person plural, Perfect tense, active voice.

Root: bhū (class 1)

मुञ्जवर्णाः (muñjavarṇāḥ) - muñja-colored, having the color of muñja grass (yellowish-white)

(adjective)

Nominative, masculine, plural of muñjavarṇa

muñjavarṇa - having the color of muñja grass (saccharum muñja), yellowish-white

Compound type : tatpuruṣa (muñja+varṇa)

• muñja – a kind of sacred grass (Saccharum Muñja), also known as sara grass
  noun (masculine)
• varṇa – color, tint, hue; outer appearance, form; social class, caste; letter, sound
  noun (masculine)

Note: Agrees with 'keśāḥ'.

तु (tu) - but, indeed, however, on the other hand

(indeclinable)

ततः (tataḥ) - then, from that, therefore

(indeclinable)

अहम् (aham) - I

(pronoun)

Nominative, singular of aham

aham - I (first person singular pronoun)

मुञ्जकेशवान् (muñjakeśavān) - referring to the transformed form or an epithet of Viṣṇu (those with muñja-like hair, (referring to) Muñjakeśava(s))

(proper noun)

Accusative, masculine, plural of muñjakeśava

muñjakeśava - having hair like muñja grass; an epithet of Viṣṇu or Kṛṣṇa

Compound type : bahuvrīhi (muñja+keśa)

• muñja – a kind of sacred grass (Saccharum Muñja)
  noun (masculine)
• keśa – hair (of the head)
  noun (masculine)