महाभारतः mahābhārataḥ - book-5, chapter-186, verse-19

अर्जुनः पाण्डवश्रेष्ठः पुरंदरसुतो बली ।
नरः प्रजापतिर्वीरः पूर्वदेवः सनातनः ॥१९॥

19. arjunaḥ pāṇḍavaśreṣṭhaḥ puraṁdarasuto balī ,
naraḥ prajāpatirvīraḥ pūrvadevaḥ sanātanaḥ.

19. Arjunaḥ Pāṇḍavaśreṣṭhaḥ Purandarasutaḥ balī
naraḥ prajāpatiḥ vīraḥ pūrvadevaḥ sanātanaḥ

19. Arjunaḥ Pāṇḍavaśreṣṭhaḥ Purandarasutaḥ balī
naraḥ prajāpatiḥ vīraḥ pūrvadevaḥ sanātanaḥ

19. Arjuna, the foremost of the Pāṇḍavas, the mighty son of Purandara (Indra), is indeed a man, a lord of creatures, a hero, a primordial god, and eternal.

Words meanings summery:

• अर्जुनः (arjunaḥ) - Arjuna

• पाण्डवश्रेष्ठः (pāṇḍavaśreṣṭhaḥ) - foremost of the Pāṇḍavas, best among Pāṇḍavas

• पुरन्दरसुतः (purandarasutaḥ) - son of Indra (son of Purandara (Indra))

• बली (balī) - strong, mighty, powerful

• नरः (naraḥ) - man, human being, person

• प्रजापतिः (prajāpatiḥ) - lord of creatures, progenitor, Brahma

• वीरः (vīraḥ) - hero, valiant, brave

• पूर्वदेवः (pūrvadevaḥ) - ancient deity, primordial god

• सनातनः (sanātanaḥ) - eternal, perpetual, everlasting

Words meanings and morphology

अर्जुनः (arjunaḥ) - Arjuna

(proper noun)

Nominative, masculine, singular of Arjuna

Arjuna - Arjuna (name of the third Pāṇḍava prince)

पाण्डवश्रेष्ठः (pāṇḍavaśreṣṭhaḥ) - foremost of the Pāṇḍavas, best among Pāṇḍavas

(noun)

Nominative, masculine, singular of Pāṇḍavaśreṣṭha

Pāṇḍavaśreṣṭha - foremost of the Pāṇḍavas

Compound type : tatpuruṣa (Pāṇḍava+śreṣṭha)

• Pāṇḍava – descendant of Pāṇḍu
  noun (masculine)
  Derived from Pāṇḍu + aṇ (patronymic affix)
• śreṣṭha – best, most excellent, foremost
  adjective (masculine)
  Superlative degree of praśasta (excellent)

पुरन्दरसुतः (purandarasutaḥ) - son of Indra (son of Purandara (Indra))

(noun)

Nominative, masculine, singular of Purandarasuta

Purandarasuta - son of Purandara

Compound type : tatpuruṣa (Purandara+suta)

• Purandara – Indra (lit. 'destroyer of cities')
  proper noun (masculine)
• suta – son
  noun (masculine)
  Past Passive Participle of sū (to beget) used as a noun
  Root: sū (class 2)

बली (balī) - strong, mighty, powerful

(adjective)

Nominative, masculine, singular of balin

balin - strong, powerful, mighty

Possessive affix -in

नरः (naraḥ) - man, human being, person

(noun)

Nominative, masculine, singular of nara

nara - man, human, person

Root: nṛ

प्रजापतिः (prajāpatiḥ) - lord of creatures, progenitor, Brahma

(noun)

Nominative, masculine, singular of prajāpati

prajāpati - lord of creatures, progenitor, a name for Brahma

Compound type : tatpuruṣa (prajā+pati)

• prajā – progeny, offspring, subjects, creatures
  noun (feminine)
  Prefix: pra
  Root: jan
• pati – lord, master, husband
  noun (masculine)

वीरः (vīraḥ) - hero, valiant, brave

(noun)

Nominative, masculine, singular of vīra

vīra - hero, brave man, warrior

पूर्वदेवः (pūrvadevaḥ) - ancient deity, primordial god

(noun)

Nominative, masculine, singular of pūrvadeva

pūrvadeva - ancient deity, primordial god

Compound type : tatpuruṣa (pūrva+deva)

• pūrva – earlier, prior, ancient
  adjective (masculine)
• deva – god, deity
  noun (masculine)
  Root: div (class 1)

सनातनः (sanātanaḥ) - eternal, perpetual, everlasting

(adjective)

Nominative, masculine, singular of sanātana

sanātana - eternal, perpetual, everlasting, ancient

Derived from sanā (always) + tana (suffix)