योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-60, verse-22

तत्र क्वचिदनादित्ये निरहोरात्रभूतले ।
आकल्पयुगवर्षान्ते जगत्यूहैः क्षयोदयः ॥ २२ ॥

tatra kvacidanāditye nirahorātrabhūtale ,
ākalpayugavarṣānte jagatyūhaiḥ kṣayodayaḥ 22

22. tatra kvacit anāditye nirahorātrabhūtale
ākalpayugavarṣānte jagati ūhaiḥ kṣayodayaḥ

22. tatra anāditye nirahorātrabhūtale kvacit
ākalpayugavarṣānte jagati ūhaiḥ kṣayodayaḥ

22. There, in a place devoid of sun, on a ground where day and night do not exist, at the conclusion of kalpas, yugas, and years, the world's dissolution and creation (kṣayodaya) occur through conceptualizations.

Words meanings summery:

• तत्र (tatra) - there, in that place

• क्वचित् (kvacit) - somewhere, sometimes, in some way

• अनादित्ये (anāditye) - in the place without a sun, sunless

• निरहोरात्रभूतले (nirahorātrabhūtale) - on a ground without day and night

• आकल्पयुगवर्षान्ते (ākalpayugavarṣānte) - at the end of kalpas, yugas, and years

• जगति (jagati) - in the created world (in the world, in the universe, in motion)

• ऊहैः (ūhaiḥ) - by mental constructs or abstract ideas (by calculations, by considerations, by inferences, by conceptualizations)

• क्षयोदयः (kṣayodayaḥ) - the cosmic cycles of destruction and manifestation (dissolution and creation, decline and rise)

Words meanings and morphology

तत्र (tatra) - there, in that place

(indeclinable)

Derived from the pronominal stem 'tad' (that) with the suffix 'tra' indicating place.

क्वचित् (kvacit) - somewhere, sometimes, in some way

(indeclinable)

Derived from the interrogative pronoun 'kim' (what/where) with the suffix 'cit'.

अनादित्ये (anāditye) - in the place without a sun, sunless

(adjective)

Locative, masculine, singular of anāditya

anāditya - without sun, sunless

Compound formed with 'a-' (negation) and 'āditya' (sun).

Compound type : nañ-tatpuruṣa (a+āditya)

• a – not, non-, un-
  indeclinable
  Negative prefix.
• āditya – the sun, a deity
  noun (masculine)

Note: Agrees with an implied 'pradese' (in a region) or takes on a neuter locative sense when referring to a 'place'.

निरहोरात्रभूतले (nirahorātrabhūtale) - on a ground without day and night

(noun)

Locative, neuter, singular of nirahorātrabhūtala

nirahorātrabhūtala - ground without day and night

Compound: nir (without) + ahorātra (day and night) + bhūtala (ground/surface).

Compound type : bahuvrīhi / tatpuruṣa (nis+ahorātra+bhūtala)

• nis – without, out, away
  indeclinable
  Prefix indicating negation or absence.
• ahorātra – day and night
  noun (neuter)
  Dvanda compound of 'ahas' (day) and 'rātri' (night).
• bhūtala – earth's surface, ground
  noun (neuter)
  Compound of 'bhū' (earth) and 'tala' (surface).

आकल्पयुगवर्षान्ते (ākalpayugavarṣānte) - at the end of kalpas, yugas, and years

(noun)

Locative, masculine, singular of ākalpayugavarṣānta

ākalpayugavarṣānta - end of kalpas, yugas, and years

Compound: ā (up to/until) + kalpa (aeon) + yuga (epoch) + varṣa (year) + anta (end). It is a compound meaning 'the end of kalpas, yugas, and years'.

Compound type : ṣaṣṭhī-tatpuruṣa (within the parts) / dvandva (kalpa-yuga-varṣa) (ā+kalpa+yuga+varṣa+anta)

• ā – up to, until, throughout
  indeclinable
  Prefix/preposition indicating extent.
• kalpa – aeon, a day of Brahma, a cosmic cycle
  noun (masculine)
  Root: kḷp (class 1)
• yuga – age, epoch, a world-period
  noun (neuter)
  Root: yuj (class 7)
• varṣa – year, rain
  noun (neuter)
  Root: vṛṣ (class 1)
• anta – end, limit, conclusion
  noun (masculine)
  Root: am (class 1)

Note: Refers to the end of a vast cosmic timescale.

जगति (jagati) - in the created world (in the world, in the universe, in motion)

(noun)

Locative, neuter, singular of jagat

jagat - world, universe, that which moves, living beings

Present Active Participle

Derived from root 'gam' (to go) with prefix 'ja-'.

Root: gam (class 1)

ऊहैः (ūhaiḥ) - by mental constructs or abstract ideas (by calculations, by considerations, by inferences, by conceptualizations)

(noun)

Instrumental, masculine, plural of ūha

ūha - calculation, conjecture, reasoning, conceptualization, deduction

From root 'ūh' (to consider, to infer).

Root: ūh (class 1)

क्षयोदयः (kṣayodayaḥ) - the cosmic cycles of destruction and manifestation (dissolution and creation, decline and rise)

(noun)

Nominative, masculine, singular of kṣayodaya

kṣayodaya - dissolution and creation, decline and rise

Dvanda compound of 'kṣaya' (dissolution, destruction) and 'udaya' (rise, manifestation, origin).

Compound type : dvandva (kṣaya+udaya)

• kṣaya – destruction, dissolution, decline, loss
  noun (masculine)
  From root 'kṣi' (to destroy, perish).
  Root: kṣi (class 1)
• udaya – rise, coming forth, origin, prosperity, creation
  noun (masculine)
  From 'ud' (up) + root 'i' (to go).
  Prefix: ud
  Root: i (class 2)