योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-64, verse-34

क्षीरोदकार्कगौरीणां वनस्कन्धौकसामिव ।
विश्राम्यन्त्यनिशं यासु हरयो हरियोनयः ॥ ३४ ॥

kṣīrodakārkagaurīṇāṃ vanaskandhaukasāmiva ,
viśrāmyantyaniśaṃ yāsu harayo hariyonayaḥ 34

34. kṣīrodārkagauryoṇām vanaskandhauokasām iva
viśrāmyanti aniśam yāsu harayaḥ hariyonayaḥ

34. yāsu kṣīrodārkagauryoṇām vanaskandhauokasām
iva harayaḥ hariyonayaḥ aniśam viśrāmyanti

34. Upon these rocks, monkeys (harayaḥ), who are of monkey lineage (hariyonayaḥ), constantly rest, resembling those white, sun-colored, and fair-complexioned monkeys that dwell on forest branches.

Words meanings summery:

• क्षीरोदार्कगौर्योणाम् (kṣīrodārkagauryoṇām) - of white, sun-colored, and fair-complexioned monkeys (in comparison) (of those that are white as milk, sun-colored, and fair-complexioned)

• वनस्कन्धौओकसाम् (vanaskandhauokasām) - of monkeys dwelling on forest branches (in comparison) (of those whose dwelling is on forest branches, of forest-branch dwellers)

• इव (iva) - like, as, as it were

• विश्राम्यन्ति (viśrāmyanti) - they rest, they repose

• अनिशम् (aniśam) - constantly, day and night, always

• यासु (yāsu) - on which rocks (on which (feminine plural))

• हरयः (harayaḥ) - monkeys (monkeys; lions)

• हरियोनयः (hariyonayaḥ) - of monkey lineage, born of monkeys

Words meanings and morphology

क्षीरोदार्कगौर्योणाम् (kṣīrodārkagauryoṇām) - of white, sun-colored, and fair-complexioned monkeys (in comparison) (of those that are white as milk, sun-colored, and fair-complexioned)

(adjective)

Genitive, feminine, plural of kṣīrodārkagauryo

kṣīrodārkagauryo - white as milk, sun-colored, and fair (feminine)

A compound listing different types or qualities, here applied to monkeys.

Compound type : dvandva (kṣīroda+arka+gaurī)

• kṣīroda – white as milk, milk-giving
  adjective (masculine)
• arka – sun; copper; a plant
  noun (masculine)
  Here likely referring to the color of the sun, i.e. golden, reddish.
• gaurī – fair-complexioned, white; a young girl; a name of Pārvatī
  adjective (feminine)

वनस्कन्धौओकसाम् (vanaskandhauokasām) - of monkeys dwelling on forest branches (in comparison) (of those whose dwelling is on forest branches, of forest-branch dwellers)

(noun)

Genitive, masculine, plural of vanaskandhauokasa

vanaskandhauokasa - whose dwelling is on forest branches

Compound type : bahuvrihi (vana+skandha+okas)

• vana – forest, wood, grove
  noun (neuter)
• skandha – shoulder; trunk of a tree, branch; section, chapter
  noun (masculine)
  Here referring to tree branches.
• okas – dwelling, abode, house; resort
  noun (neuter)

इव (iva) - like, as, as it were

(indeclinable)

विश्राम्यन्ति (viśrāmyanti) - they rest, they repose

(verb)

3rd person , plural, active, present (laṭ) of viśrām

Present Active

3rd person plural, Present Tense, Active Voice, derived from root 'śram' with 'vi'

Prefix: vi

Root: śram (class 4)

अनिशम् (aniśam) - constantly, day and night, always

(indeclinable)

Adverbial form derived from 'aniśa' (without night, continuous)

यासु (yāsu) - on which rocks (on which (feminine plural))

(pronoun)

Locative, feminine, plural of yad

yad - which, who

हरयः (harayaḥ) - monkeys (monkeys; lions)

(noun)

Nominative, masculine, plural of hari

hari - lion; monkey; horse; Viṣṇu; Indra; light yellow, tawny

हरियोनयः (hariyonayaḥ) - of monkey lineage, born of monkeys

(adjective)

Nominative, masculine, plural of hariyoni

hariyoni - of monkey lineage, born of monkeys; a monkey

Literally 'monkey-womb' or 'monkey-origin', implying belonging to the monkey species.

Compound type : tatpurusha (hari+yoni)

• hari – monkey; lion
  noun (masculine)
• yoni – womb, source, origin, birthplace; species, lineage
  noun (feminine)