महाभारतः mahābhārataḥ - book-3, chapter-157, verse-34

स किंनरमहानागमुनिगन्धर्वराक्षसान् ।
हर्षयन्पर्वतस्याग्रमाससाद महाबलः ॥३४॥

34. sa kiṁnaramahānāgamunigandharvarākṣasān ,
harṣayanparvatasyāgramāsasāda mahābalaḥ.

34. saḥ kinnaramahānāgamunigandharvarākṣasān |
harṣayan parvatasya agram āsasāda mahābalaḥ

34. Delighting the Kinnaras, great Nāgas, Munis, Gandharvas, and Rākṣasas, the mighty one (Arjuna) reached the mountain's summit.

Words meanings summery:

• सः (saḥ) - he (Arjuna) (he, that)

• किन्नरमहानागमुनिगन्धर्वराक्षसान् (kinnaramahānāgamunigandharvarākṣasān) - Kinnaras, great Nāgas, Munis, Gandharvas, and Rākṣasas (celestial and mythical beings) (Kinnaras, great Nāgas, Munis, Gandharvas, and Rākṣasas)

• हर्षयन् (harṣayan) - delighting, causing joy, gladdening

• पर्वतस्य (parvatasya) - of the mountain

• अग्रम् (agram) - summit (top, summit, front)

• आससाद (āsasāda) - reached, attained, approached

• महाबलः (mahābalaḥ) - the mighty one (Arjuna) (mighty, very strong)

Words meanings and morphology

सः (saḥ) - he (Arjuna) (he, that)

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

किन्नरमहानागमुनिगन्धर्वराक्षसान् (kinnaramahānāgamunigandharvarākṣasān) - Kinnaras, great Nāgas, Munis, Gandharvas, and Rākṣasas (celestial and mythical beings) (Kinnaras, great Nāgas, Munis, Gandharvas, and Rākṣasas)

(noun)

Accusative, masculine, plural of kinnaramahānāgamunigandharvarākṣasa

kinnaramahānāgamunigandharvarākṣasa - Kinnaras, great Nāgas, Munis, Gandharvas, and Rākṣasas (a collective group of mythical beings)

Compound of multiple nouns forming a list of beings.

Compound type : dvandva (kinnara+mahānāga+muni+gandharva+rākṣasa)

• kinnara – a mythical being, half-man half-horse, a celestial musician
  noun (masculine)
• mahānāga – great serpent, great Nāga (semi-divine serpentine being)
  noun (masculine)
  mahā (great) + nāga (serpent)
• muni – sage, ascetic, inspired person, silent one
  noun (masculine)
• gandharva – a celestial musician, a class of demi-gods, a mythical being
  noun (masculine)
• rākṣasa – a demon, an evil spirit, a class of mythical beings
  noun (masculine)

हर्षयन् (harṣayan) - delighting, causing joy, gladdening

(adjective)

Nominative, masculine, singular of harṣayat

harṣayat - delighting, gladdening, causing joy

Present Active Participle (causative)

From causative of root √hṛṣ (to be excited, rejoice)

Root: √hṛṣ (class 1)

Note: Qualifies 'saḥ' (Arjuna).

पर्वतस्य (parvatasya) - of the mountain

(noun)

Genitive, masculine, singular of parvata

parvata - mountain, hill, rock

अग्रम् (agram) - summit (top, summit, front)

(noun)

Accusative, neuter, singular of agra

agra - front, top, summit, tip, point, chief, best

आससाद (āsasāda) - reached, attained, approached

(verb)

3rd person , singular, active, perfect (liṭ) of √sad

Perfect Active

Prefix ā + root √sad (to sit, approach). Reduplicated perfect āsasāda.

Prefix: ā

Root: √sad (class 1)

महाबलः (mahābalaḥ) - the mighty one (Arjuna) (mighty, very strong)

(noun)

Nominative, masculine, singular of mahābala

mahābala - mighty, very strong, of great strength, great power

mahā (great) + bala (strength)

Compound type : bahuvrihi (mahā+bala)

• mahā – great, large, mighty
  adjective (feminine)
• bala – strength, power, force, might
  noun (neuter)