महाभारतः mahābhārataḥ - book-3, chapter-172, verse-13

राजर्षयश्च प्रवरास्तथैव च दिवौकसः ।
यक्षराक्षसगन्धर्वास्तथैव च पतत्रिणः ॥१३॥

13. rājarṣayaśca pravarāstathaiva ca divaukasaḥ ,
yakṣarākṣasagandharvāstathaiva ca patatriṇaḥ.

13. rājarṣayaḥ ca pravarāḥ tathā eva ca divaukasaḥ
yakṣarākṣasagandharvāḥ tathā eva ca patatriṇaḥ

13. And the foremost royal sages, and similarly the celestial beings, as well as Yakṣas, Rākṣasas, Gandharvas, and likewise the birds (all gathered).

Words meanings summery:

• राजर्षयः (rājarṣayaḥ) - royal sages, kingly seers

• च (ca) - and, also, moreover

• प्रवराः (pravarāḥ) - excellent, chief, foremost, best

• तथैव (tathaiva) - likewise, in the same way, similarly

• च (ca) - and, also, moreover

• दिवौकसः (divaukasaḥ) - dwellers of heaven, gods, celestials

• यक्षराक्षसगन्धर्वाः (yakṣarākṣasagandharvāḥ) - Names of semi-divine or mythical beings. (Yakṣas, Rākṣasas, and Gandharvas)

• तथैव (tathaiva) - likewise, in the same way, similarly

• च (ca) - and, also, moreover

• पतत्रिणः (patatriṇaḥ) - birds, winged creatures

Words meanings and morphology

राजर्षयः (rājarṣayaḥ) - royal sages, kingly seers

(noun)

Nominative, masculine, plural of rājarṣi

rājarṣi - a royal sage, a king who is also a sage

Compound of rājan (king) + ṛṣi (sage)

Compound type : karmadhāraya (rājan+ṛṣi)

• rājan – king, ruler
  noun (masculine)
• ṛṣi – sage, seer
  noun (masculine)

च (ca) - and, also, moreover

(indeclinable)

प्रवराः (pravarāḥ) - excellent, chief, foremost, best

(adjective)

Nominative, masculine, plural of pravara

pravara - chief, excellent, best, pre-eminent

From pra-vṛ (to choose, select) or pra + vara (best)

Prefix: pra

Root: vṛ (class 9)

Note: Agrees with rājarṣayaḥ.

तथैव (tathaiva) - likewise, in the same way, similarly

(indeclinable)

Sandhi of tathā + eva

च (ca) - and, also, moreover

(indeclinable)

दिवौकसः (divaukasaḥ) - dwellers of heaven, gods, celestials

(noun)

Nominative, masculine, plural of divaukas

divaukas - dweller in heaven, a god, celestial

Compound of div (heaven) + okas (dwelling)

Compound type : tatpuruṣa (div+okas)

• div – heaven, sky, day
  noun (feminine)
• okas – dwelling, house, abode
  noun (neuter)

यक्षराक्षसगन्धर्वाः (yakṣarākṣasagandharvāḥ) - Names of semi-divine or mythical beings. (Yakṣas, Rākṣasas, and Gandharvas)

(noun)

Nominative, masculine, plural of yakṣarākṣasagandharva

yakṣarākṣasagandharva - Yakṣas, Rākṣasas, and Gandharvas (plural of collective noun)

Dvaṃdva compound listing three types of beings.

Compound type : dvandva (yakṣa+rākṣasa+gandharva)

• yakṣa – a class of semi-divine beings, guardians of wealth
  noun (masculine)
• rākṣasa – a demon, an evil being
  noun (masculine)
• gandharva – a class of celestial musicians and dancers
  noun (masculine)

तथैव (tathaiva) - likewise, in the same way, similarly

(indeclinable)

Sandhi of tathā + eva

च (ca) - and, also, moreover

(indeclinable)

पतत्रिणः (patatriṇaḥ) - birds, winged creatures

(noun)

Nominative, masculine, plural of patatrin

patatrin - winged, bird, winged creature

From patatra (wing) + in suffix