योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-87, verse-20

ऋत्वन्तरे यथा याति विलयं पूर्वमार्तवम् ।
तथैव वासनानाशे नाशमेति क्रियाफलम् ॥ २० ॥

ṛtvantare yathā yāti vilayaṃ pūrvamārtavam ,
tathaiva vāsanānāśe nāśameti kriyāphalam 20

20. ṛtu-antare yathā yāti vilayam pūrvam ārtavam
tathā eva vāsanā-nāśe nāśam eti kriyā-phalam

20. yathā pūrvam ārtavam ṛtu-antare vilayam yāti,
tathā eva vāsanā-nāśe kriyā-phalam nāśam eti

20. Just as the yield of a previous season naturally disappears in a subsequent one, so too, upon the cessation of mental impressions, the consequences of actions likewise cease to exist.

Words meanings summery:

• ऋतु-अन्तरे (ṛtu-antare) - in another season, in a different season

• यथा (yathā) - just as, as

• याति (yāti) - goes, proceeds, reaches

• विलयम् (vilayam) - dissolution, merging, disappearance

• पूर्वम् (pūrvam) - referring to seasonal produce (previous, former, earlier)

• आर्तवम् (ārtavam) - seasonal, pertaining to a season; seasonal produce/fruit

• तथा (tathā) - similarly, in that manner, so

• एव (eva) - indeed, certainly, only, just

• वासना-नाशे (vāsanā-nāśe) - upon the destruction of mental impressions, in the ruin of latent desires

• नाशम् (nāśam) - destruction, ruin, disappearance

• एति (eti) - goes, comes, attains

• क्रिया-फलम् (kriyā-phalam) - the fruit of action, result of action

Words meanings and morphology

ऋतु-अन्तरे (ṛtu-antare) - in another season, in a different season

(noun)

Locative, neuter, singular of ṛtu-antara

ṛtu-antara - another season, a different season

Compound type : tatpurusha (ṛtu+antara)

• ṛtu – season, period of time
  noun (masculine)
• antara – other, different, interior, space between
  adjective (neuter)

यथा (yathā) - just as, as

(indeclinable)

याति (yāti) - goes, proceeds, reaches

(verb)

3rd person , singular, active, present (laṭ) of yā

Root: yā (class 2)

विलयम् (vilayam) - dissolution, merging, disappearance

(noun)

Accusative, masculine, singular of vilaya

vilaya - dissolution, merging, disappearance, destruction

Derived from root lī (to cling, dissolve) with prefix vi-

Prefix: vi

Root: lī (class 4)

पूर्वम् (pūrvam) - referring to seasonal produce (previous, former, earlier)

(adjective)

Nominative, neuter, singular of pūrva

pūrva - previous, former, earlier, prior

आर्तवम् (ārtavam) - seasonal, pertaining to a season; seasonal produce/fruit

(noun)

Nominative, neuter, singular of ārtava

ārtava - seasonal, belonging to a season; (as noun) seasonal produce, menstrual fluid

Derived from ṛtu (season) with suffix aṇ

तथा (tathā) - similarly, in that manner, so

(indeclinable)

एव (eva) - indeed, certainly, only, just

(indeclinable)

वासना-नाशे (vāsanā-nāśe) - upon the destruction of mental impressions, in the ruin of latent desires

(noun)

Locative, masculine, singular of vāsanā-nāśa

vāsanā-nāśa - destruction/cessation of mental impressions/latent desires

Compound type : tatpurusha (vāsanā+nāśa)

• vāsanā – mental impression, latent tendency, habit
  noun (feminine)
  Root: vas (class 4)
• nāśa – destruction, ruin, loss, disappearance
  noun (masculine)
  Derived from root naś (to perish, be lost)
  Root: naś (class 4)

नाशम् (nāśam) - destruction, ruin, disappearance

(noun)

Accusative, masculine, singular of nāśa

nāśa - destruction, ruin, loss, disappearance

Derived from root naś (to perish, be lost)

Root: naś (class 4)

एति (eti) - goes, comes, attains

(verb)

3rd person , singular, active, present (laṭ) of i

Root: i (class 2)

क्रिया-फलम् (kriyā-phalam) - the fruit of action, result of action

(noun)

Nominative, neuter, singular of kriyā-phala

kriyā-phala - fruit of action, result of action, consequence of deed

Compound type : tatpurusha (kriyā+phala)

• kriyā – action, activity, deed
  noun (feminine)
  Derived from root kṛ (to do)
  Root: kṛ (class 8)
• phala – fruit, result, consequence, reward
  noun (neuter)
  Root: phal (class 1)