महाभारतः mahābhārataḥ - book-1, chapter-52, verse-16

ऋषभो वेगवान्नाम पिण्डारकमहाहनू ।
रक्ताङ्गः सर्वसारङ्गः समृद्धः पाटराक्षसौ ॥१६॥

16. ṛṣabho vegavānnāma piṇḍārakamahāhanū ,
raktāṅgaḥ sarvasāraṅgaḥ samṛddhaḥ pāṭarākṣasau.

16. ṛṣabhaḥ vegavān nāma piṇḍārakamahāhanū
raktāṅgaḥ sarvasāraṅgaḥ samṛddhaḥ pāṭarākṣasau

16. Ṛṣabha, Vegavān by name, Piṇḍāraka, Mahāhanu, Raktāṅga, Sarvasāraṅga, Samṛddha, Pāṭara, and Akṣasa.

Words meanings summery:

• ऋषभः (ṛṣabhaḥ) - Name of a serpent (Ṛṣabha (a proper name, 'bull, best'))

• वेगवान् (vegavān) - Name of a serpent, swift (swift, rapid, Vegavān (a proper name))

• नाम (nāma) - by name (by name, indeed, namely)

• पिण्डारकमहाहनू (piṇḍārakamahāhanū) - Two serpents named Piṇḍāraka and Mahāhanu (Piṇḍāraka and Mahāhanu (proper names))

• रक्ताङ्गः (raktāṅgaḥ) - Name of a serpent (Raktāṅga (a proper name, 'red-bodied, red-limbed'))

• सर्वसारङ्गः (sarvasāraṅgaḥ) - Name of a serpent (Sarvasāraṅga (a proper name, 'all-spotted' or 'entirely like a deer'))

• समृद्धः (samṛddhaḥ) - Name of a serpent (Samṛddha (a proper name, 'prosperous, rich, accomplished'))

• पाटराक्षसौ (pāṭarākṣasau) - Two serpents named Paṭara and Akṣasa (Paṭarākṣasa (a proper name, dual))

Words meanings and morphology

ऋषभः (ṛṣabhaḥ) - Name of a serpent (Ṛṣabha (a proper name, 'bull, best'))

(noun)

Nominative, masculine, singular of ṛṣabha

ṛṣabha - bull, lord, best, excellent, a proper name

Root: ṛṣ (class 1)

वेगवान् (vegavān) - Name of a serpent, swift (swift, rapid, Vegavān (a proper name))

(adjective)

Nominative, masculine, singular of vegavat

vegavat - swift, rapid, quick, having speed (a proper name)

possessive suffix -vat

Note: The base is vegavat, nominative singular masculine is vegavān.

नाम (nāma) - by name (by name, indeed, namely)

(indeclinable)

adverbial use of noun 'nāman'

Note: Used here to specify that "Vegavān" is a name.

पिण्डारकमहाहनू (piṇḍārakamahāhanū) - Two serpents named Piṇḍāraka and Mahāhanu (Piṇḍāraka and Mahāhanu (proper names))

(noun)

Nominative, masculine, dual of piṇḍārakamahāhanu

piṇḍārakamahāhanu - Piṇḍāraka and Mahāhanu (names)

Compound type : dvandva (piṇḍāraka+mahāhanu)

• piṇḍāraka – (a proper name, possibly related to 'lump' or 'ball')
  noun (masculine)
• mahāhanu – one with great jaws (a proper name)
  noun (masculine)

Note: The word is grammatically a dual form indicating two subjects. It refers to two names: Piṇḍāraka and Mahāhanu.

रक्ताङ्गः (raktāṅgaḥ) - Name of a serpent (Raktāṅga (a proper name, 'red-bodied, red-limbed'))

(noun)

Nominative, masculine, singular of raktāṅga

raktāṅga - red-bodied, red-limbed (a proper name)

Compound type : bahuvrīhi (rakta+aṅga)

• rakta – red, colored, dyed, passionate
  adjective
  past passive participle
  from root rañj- (to redden, color)
  Root: rañj (class 1)
• aṅga – limb, body, part
  noun (neuter)

सर्वसारङ्गः (sarvasāraṅgaḥ) - Name of a serpent (Sarvasāraṅga (a proper name, 'all-spotted' or 'entirely like a deer'))

(noun)

Nominative, masculine, singular of sarvasāraṅga

sarvasāraṅga - entirely variegated/spotted, completely like a deer/peacock (a proper name)

Compound type : karmadhāraya (sarva+sāraṅga)

• sarva – all, every, whole, entire
  adjective
• sāraṅga – spotted, variegated, a deer, a peacock, an elephant
  adjective (masculine)
  Root: sṛ (class 1)

समृद्धः (samṛddhaḥ) - Name of a serpent (Samṛddha (a proper name, 'prosperous, rich, accomplished'))

(adjective)

Nominative, masculine, singular of samṛddha

samṛddha - prosperous, rich, accomplished, perfected, complete (a proper name)

past passive participle

from root ṛdh- (to prosper, grow) with prefix sam-

Prefix: sam

Root: ṛdh (class 4)

पाटराक्षसौ (pāṭarākṣasau) - Two serpents named Paṭara and Akṣasa (Paṭarākṣasa (a proper name, dual))

(noun)

Nominative, masculine, dual of pāṭarākṣasa

pāṭarākṣasa - Paṭara and Akṣasa (names)

Compound type : dvandva (pāṭara+akṣasa)

• pāṭara – a kind of plant, reddish, pale red (a proper name)
  noun (masculine)
  Root: paṭ (class 1)
• akṣasa – (a proper name, possibly related to 'eye' or 'dice')
  noun (masculine)

Note: The word is grammatically a dual form indicating two subjects. It refers to two names: Pāṭara and Akṣasa.