महाभारतः mahābhārataḥ - book-1, chapter-61, verse-53

बृहन्नामाष्टमस्तेषां कालेयानां परंतपः ।
बभूव राजन्धर्मात्मा सर्वभूतहिते रतः ॥५३॥

53. bṛhannāmāṣṭamasteṣāṁ kāleyānāṁ paraṁtapaḥ ,
babhūva rājandharmātmā sarvabhūtahite rataḥ.

53. bṛhannāmā aṣṭamaḥ teṣām kāleyānām paraṃtapaḥ
| babhūva rājan dharmātmā sarvabhūtahite rataḥ

53. O King, the eighth among those Kāleyas, known as Bṛhannāman, the tormentor of enemies, became a righteous soul, devoted to the welfare of all beings.

Words meanings summery:

• बृहन्नामा (bṛhannāmā) - Bṛhannāman (as a proper name) (Bṛhannāman (a proper name, lit. 'great name'))

• अष्टमः (aṣṭamaḥ) - the eighth one (eighth)

• तेषाम् (teṣām) - among them (of them)

• कालेयानाम् (kāleyānām) - of the Kāleyas (of the Kāleyas (a class of Asuras))

• परंतपः (paraṁtapaḥ) - tormentor of enemies (tormentor of enemies, subduer of foes (epithet))

• बभूव (babhūva) - became (became, was)

• राजन् (rājan) - O King! (addressing the listener) (O king!)

• धर्मात्मा (dharmātmā) - a righteous soul (righteous soul, virtuous, pious)

• सर्वभूतहिते (sarvabhūtahite) - in the welfare of all beings (in the welfare of all beings, devoted to the good of all creatures)

• रतः (rataḥ) - devoted to (devoted to, engaged in, pleased with)

Words meanings and morphology

बृहन्नामा (bṛhannāmā) - Bṛhannāman (as a proper name) (Bṛhannāman (a proper name, lit. 'great name'))

(noun)

Nominative, masculine, singular of bṛhannāman

bṛhannāman - having a great name; a proper name

Compound type : bahuvrīhi (bṛhat+nāman)

• bṛhat – great, large, vast, extensive
  adjective
• nāman – name, appellation, designation
  noun (neuter)

अष्टमः (aṣṭamaḥ) - the eighth one (eighth)

(adjective)

Nominative, masculine, singular of aṣṭama

aṣṭama - eighth; a ninth part

ordinal numeral from aṣṭan (eight)

तेषाम् (teṣām) - among them (of them)

(pronoun)

Genitive, plural of tad

tad - that, he, she, it, they, those

कालेयानाम् (kāleyānām) - of the Kāleyas (of the Kāleyas (a class of Asuras))

(noun)

Genitive, masculine, plural of kāleya

kāleya - descendant of Kalī; a class of Asuras or demons

परंतपः (paraṁtapaḥ) - tormentor of enemies (tormentor of enemies, subduer of foes (epithet))

(noun)

Nominative, masculine, singular of paraṃtapa

paraṁtapa - one who scorches/torments his enemies; an epithet for a hero or warrior

Compound type : aluk-tatpuruṣa (para+tapa)

• para – other, hostile, enemy
  adjective
• tapa – burning, scorching, tormenting; heat
  noun (masculine)
  agent noun
  From root tap 'to heat, torment'
  Root: tap (class 1)

बभूव (babhūva) - became (became, was)

(verb)

3rd person , singular, active, perfect (liṭ) of bhū

Root: bhū (class 1)

राजन् (rājan) - O King! (addressing the listener) (O king!)

(noun)

Vocative, masculine, singular of rājan

rājan - king, monarch, ruler

धर्मात्मा (dharmātmā) - a righteous soul (righteous soul, virtuous, pious)

(noun)

Nominative, masculine, singular of dharmātman

dharmātman - righteous-souled, virtuous, pious, upright; one whose nature is righteousness

Compound type : bahuvrīhi (dharma+ātman)

• dharma – righteousness, duty, law, virtue
  noun (masculine)
• ātman – soul, self, spirit, essence
  noun (masculine)

सर्वभूतहिते (sarvabhūtahite) - in the welfare of all beings (in the welfare of all beings, devoted to the good of all creatures)

(noun)

Locative, neuter, singular of sarvabhūtahita

sarvabhūtahita - the welfare or good of all beings

Compound type : ṣaṣṭhī-tatpuruṣa (sarvabhūta+hita)

• sarvabhūta – all beings, every creature
  noun (neuter)
• hita – welfare, benefit, good, advantage
  noun (neuter)
  past participle (used as noun)
  from root dhā with prefix hi, or a separate root hi 'to please'

रतः (rataḥ) - devoted to (devoted to, engaged in, pleased with)

(adjective)

Nominative, masculine, singular of rata

rata - delighted, pleased, fond of, devoted or attached to, engaged in

past participle

kṛt affix -ta from root ram 'to delight'

Root: ram (class 1)