योगवासिष्ठः yogavāsiṣṭhaḥ - book-4, chapter-47, verse-81

पुनर्नीरसतामेति जगदस्तशुभस्थिति ।
अभ्यासीभूतसंकल्पं संशुष्कमिव काननम् ॥ ८१ ॥

punarnīrasatāmeti jagadastaśubhasthiti ,
abhyāsībhūtasaṃkalpaṃ saṃśuṣkamiva kānanam 81

81. punaḥ nīrasatām eti jagat astaśubhasthiti |
abhyāsībhūtasaṅkalpam saṃśuṣkam iva kānanam ||

81. punaḥ astaśubhasthiti jagat nīrasatām eti (tat)
abhyāsībhūtasaṅkalpam saṃśuṣkam kānanam iva (bhavati)

81. Again, the world, its auspicious state gone, becomes joyless, like a completely dried-up forest accustomed to mental constructs (or accustomed to repeated, conceptual existence).

Words meanings summery:

• पुनः (punaḥ) - again, anew, furthermore

• नीरसताम् (nīrasatām) - to a state of being joyless, dry, insipid, devoid of essence

• एति (eti) - goes, attains, reaches

• जगत् (jagat) - the world/universe (the world, universe, moving)

• अस्तशुभस्थिति (astaśubhasthiti) - whose auspicious state has vanished/destroyed

• अभ्यासीभूतसङ्कल्पम् (abhyāsībhūtasaṅkalpam) - accustomed to mental constructs, having become a repeated concept

• संशुष्कम् (saṁśuṣkam) - completely dried up, withered

• इव (iva) - like, as, as if

• काननम् (kānanam) - forest, grove

Words meanings and morphology

पुनः (punaḥ) - again, anew, furthermore

(indeclinable)

नीरसताम् (nīrasatām) - to a state of being joyless, dry, insipid, devoid of essence

(noun)

Accusative, feminine, singular of nīrasatā

nīrasatā - joylessness, dryness, insipidity, absence of essence or flavor

एति (eti) - goes, attains, reaches

(verb)

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

Root: i (class 2)

जगत् (jagat) - the world/universe (the world, universe, moving)

(noun)

Nominative, neuter, singular of jagat

jagat - the world, universe, people, moving, movable

Present Active Participle

Derived from root gam (to go, move)

Root: gam (class 1)

अस्तशुभस्थिति (astaśubhasthiti) - whose auspicious state has vanished/destroyed

(adjective)

Nominative, neuter, singular of astaśubhasthiti

astaśubhasthiti - having lost its auspicious state

Compound type : bahuvrihi (asta+śubha+sthiti)

• asta – set, vanished, thrown
  adjective (neuter)
  Past Passive Participle
  Derived from root as (to throw) or related to astam (setting)
  Root: as (class 4)
• śubha – auspicious, good, beautiful, propitious
  adjective (neuter)
• sthiti – state, condition, position, existence, stability
  noun (feminine)

Note: Agrees with 'jagat'

अभ्यासीभूतसङ्कल्पम् (abhyāsībhūtasaṅkalpam) - accustomed to mental constructs, having become a repeated concept

(adjective)

Accusative, neuter, singular of abhyāsībhūtasaṅkalpa

abhyāsībhūtasaṅkalpa - that which has become the object of repeated mental conception or practice

Compound type : bahuvrihi (abhyāsībhūta+saṅkalpa)

• abhyāsībhūta – having become accustomed, having become a practice
  adjective (neuter)
  Derived from abhyāsa (practice) + bhūta (become)
• saṅkalpa – intention, resolve, mental creation, concept
  noun (masculine)

Note: Agrees with 'kānanam'

संशुष्कम् (saṁśuṣkam) - completely dried up, withered

(adjective)

Accusative, neuter, singular of saṃśuṣka

saṁśuṣka - completely dried, withered, arid

Past Passive Participle

Derived from root śuṣ (to dry) with prefix sam

Prefix: sam

Root: śuṣ (class 4)

Note: Agrees with 'kānanam'

इव (iva) - like, as, as if

(indeclinable)

काननम् (kānanam) - forest, grove

(noun)

Accusative, neuter, singular of kānana

kānana - forest, grove, wood