महाभारतः mahābhārataḥ - book-1, chapter-28, verse-3

तत्र चासीदमेयात्मा विद्युदग्निसमप्रभः ।
भौवनः सुमहावीर्यः सोमस्य परिरक्षिता ॥३॥

3. tatra cāsīdameyātmā vidyudagnisamaprabhaḥ ,
bhauvanaḥ sumahāvīryaḥ somasya parirakṣitā.

3. tatra ca āsīt ameyātmā vidyudagnisamaprabhaḥ
bhauvanaḥ sumahāvīryaḥ somasya parirakṣitā

3. And there was one of immeasurable spirit, whose brilliance was like lightning and fire; Bhauvana, exceedingly valorous, the protector of Soma.

Words meanings summery:

• तत्र (tatra) - in that place (where the fight was) (there, in that place)

• च (ca) - and (and, also)

• आसीत् (āsīt) - was (was, existed)

• अमेयात्मा (ameyātmā) - of immeasurable spirit (one of immeasurable self/spirit)

• विद्युदग्निसमप्रभः (vidyudagnisamaprabhaḥ) - whose brilliance was like lightning and fire (having splendor like lightning and fire)

• भौवनः (bhauvanaḥ) - Bhauvana (name of a celestial being) (Bhauvana (proper name or epithet))

• सुमहावीर्यः (sumahāvīryaḥ) - exceedingly valorous (exceedingly valorous, very powerful)

• सोमस्य (somasya) - of Soma (the divine nectar) (of Soma (divine nectar, moon-god))

• परिरक्षिता (parirakṣitā) - protector (protector, guardian)

Words meanings and morphology

तत्र (tatra) - in that place (where the fight was) (there, in that place)

(indeclinable)

Locative derivative of 'tad'

च (ca) - and (and, also)

(indeclinable)

आसीत् (āsīt) - was (was, existed)

(verb)

3rd person , singular, active, past imperfect (laṅ) of as

Prefix:

Root: as (class 2)

अमेयात्मा (ameyātmā) - of immeasurable spirit (one of immeasurable self/spirit)

(noun)

Nominative, masculine, singular of ameya-ātman

ameya-ātman - one whose self is immeasurable, of immeasurable spirit

Compound type : bahuvrīhi (ameya+ātman)

• ameya – immeasurable, incalculable
  adjective (masculine)
  gerundive/potential passive participle
  Derived from root mā (to measure) with prefix a (negation) and suffix -ya (kṛtya)
  Prefix:
  Root: mā (class 3)
• ātman – self, soul, spirit, essence
  noun (masculine)
  Prefix:

विद्युदग्निसमप्रभः (vidyudagnisamaprabhaḥ) - whose brilliance was like lightning and fire (having splendor like lightning and fire)

(adjective)

Nominative, masculine, singular of vidyut-agni-sama-prabha

vidyut-agni-sama-prabha - having splendor like lightning and fire

Compound type : bahuvrīhi (vidyut+agni+sama+prabha)

• vidyut – lightning
  noun (feminine)
  Prefix:
  Root: dyut (class 1)
• agni – fire, god of fire
  noun (masculine)
  Prefix:
• sama – like, equal, similar
  adjective (masculine)
  Prefix:
• prabha – light, splendor, radiance
  noun (feminine)
  Prefix:

भौवनः (bhauvanaḥ) - Bhauvana (name of a celestial being) (Bhauvana (proper name or epithet))

(noun)

Nominative, masculine, singular of bhauvana

bhauvana - relating to Bhuvanā; a celestial being; (proper name) Bhauvana

सुमहावीर्यः (sumahāvīryaḥ) - exceedingly valorous (exceedingly valorous, very powerful)

(adjective)

Nominative, masculine, singular of sumahāvīrya

sumahāvīrya - of great valor, exceedingly powerful

Compound type : bahuvrīhi (su+mahā+vīrya)

• su – good, well, very, excellent
  prefix
  Prefix:
• mahā – great, mighty, large
  adjective
  Prefix:
• vīrya – valor, strength, heroism, energy
  noun (neuter)
  Prefix:

सोमस्य (somasya) - of Soma (the divine nectar) (of Soma (divine nectar, moon-god))

(noun)

Genitive, masculine, singular of soma

soma - Soma (a divine drink or the plant it's made from), the moon-god

परिरक्षिता (parirakṣitā) - protector (protector, guardian)

(noun)

Nominative, masculine, singular of parirakṣitṛ

parirakṣitṛ - protector, guardian

agent noun

Derived from root rakṣ (to protect) with prefix pari- and suffix -tṛ (agent noun)

Prefix: pari

Root: rakṣ (class 1)