योगवासिष्ठः yogavāsiṣṭhaḥ - book-4, chapter-53, verse-18

केचिच्चिरेण नश्यन्ति केचिच्छीघ्रविनाशिनः ।
केचित्केशोलपोल्लासरचिताच्छादनश्रियः ॥ १८ ॥

keciccireṇa naśyanti kecicchīghravināśinaḥ ,
kecitkeśolapollāsaracitācchādanaśriyaḥ 18

18. kecit cireṇa naśyanti kecit śīghravināśinaḥ
kecit keśolapaullāsaracitācchādanaśriyaḥ

18. kecit cireṇa naśyanti,
kecit śīghravināśinaḥ,
kecit keśolapaullāsaracitācchādanaśriyaḥ

18. Some perish after a long time, others are quick to perish, and some possess the beauty of a covering crafted with the exuberance of hair or fibers.

Words meanings summery:

• केचित् (kecit) - some, certain ones

• चिरेण (cireṇa) - after a long time, slowly

• नश्यन्ति (naśyanti) - they perish, they are destroyed

• केचित् (kecit) - others (some, certain ones)

• शीघ्रविनाशिनः (śīghravināśinaḥ) - quick to perish, quickly destroyed

• केचित् (kecit) - some, certain ones

• केशोलपौल्लासरचिताच्छादनश्रियः (keśolapaullāsaracitācchādanaśriyaḥ) - possess the beauty of a covering crafted with the exuberance of hair or fibers (those whose beauty is a covering made with the exuberance of hair/fibers)

Words meanings and morphology

केचित् (kecit) - some, certain ones

(pronoun)

Nominative, masculine, plural of kimcid

kimcid - some, a certain (thing/person)

चिरेण (cireṇa) - after a long time, slowly

(indeclinable)

Note: Adverbial use of instrumental case.

नश्यन्ति (naśyanti) - they perish, they are destroyed

(verb)

3rd person , plural, active, present (lat) of naś

Present Active

Root naś (class 4) + -ya- infix + -anti suffix.

Root: naś (class 4)

केचित् (kecit) - others (some, certain ones)

(pronoun)

Nominative, masculine, plural of kimcid

kimcid - some, a certain (thing/person)

शीघ्रविनाशिनः (śīghravināśinaḥ) - quick to perish, quickly destroyed

(adjective)

Nominative, masculine, plural of śīghravināśin

śīghravināśin - quick to perish, rapidly decaying

Compound type : Karmadharaya (śīghra+vināśin)

• śīghra – quick, swift, rapid, speedy
  adjective (neuter)
• vināśin – perishing, destroying, decaying, ruinous
  adjective (masculine)
  Agent noun / Adjective from root nāś with vi-
  From root naś (class 4) with prefix vi-, with -in suffix indicating agent/habitual action.
  Prefix: vi
  Root: naś (class 4)

केचित् (kecit) - some, certain ones

(pronoun)

Nominative, masculine, plural of kimcid

kimcid - some, a certain (thing/person)

केशोलपौल्लासरचिताच्छादनश्रियः (keśolapaullāsaracitācchādanaśriyaḥ) - possess the beauty of a covering crafted with the exuberance of hair or fibers (those whose beauty is a covering made with the exuberance of hair/fibers)

(adjective)

Nominative, masculine, plural of keśolapaullāsaracitācchādanaśrī

keśolapaullāsaracitācchādanaśrī - having the beauty of a covering made with the exuberance of hair and grass/fibers

Compound type : Bahuvrihi (keśa+ulapa+ullāsa+racita+ācchādana+śrī)

• keśa – hair (of the head)
  noun (masculine)
• ulapa – grass, a kind of coarse grass or rush
  noun (masculine)
• ullāsa – exuberance, joy, splendor, delight, manifestation, bloom
  noun (masculine)
  Prefix: ud
  Root: las (class 1)
• racita – made, created, composed, arranged
  adjective (neuter)
  Past Passive Participle
  From root rac (class 10) + -ita suffix.
  Root: rac (class 10)
• ācchādana – covering, clothing, concealment
  noun (neuter)
  Prefix: ā
  Root: chad (class 10)
• śrī – beauty, splendor, prosperity, glory
  noun (feminine)