योगवासिष्ठः yogavāsiṣṭhaḥ - book-4, chapter-3, verse-8

अतः स्मर्तुरभावेन स्मृतिर्वोदेति किं कथम् ।
अवश्यं हि महाकल्पे सर्वे मोक्षैकभागिनः ॥ ८ ॥

ataḥ smarturabhāvena smṛtirvodeti kiṃ katham ,
avaśyaṃ hi mahākalpe sarve mokṣaikabhāginaḥ 8

8. ataḥ smartuḥ abhāvena smṛtiḥ vā udeti kim katham
avaśyam hi mahākalpe sarve mokṣaikabhāginaḥ

8. ataḥ smartuḥ abhāvena smṛtiḥ vā kim katham udeti
hi avaśyam mahākalpe sarve mokṣaikabhāginaḥ

8. Therefore, with the absence of a rememberer, how can memory (smṛti) possibly arise? For truly, in the great cosmic period (mahākalpa), all beings invariably partake in final liberation (mokṣa).

Words meanings summery:

• अतः (ataḥ) - therefore, hence, from this

• स्मर्तुः (smartuḥ) - of the rememberer, of the one who remembers

• अभावेन (abhāvena) - by the absence, due to the non-existence

• स्मृतिः (smṛtiḥ) - memory (smṛti) (memory, remembrance)

• वा (vā) - or, either

• उदेति (udeti) - arises, rises, comes forth

• किम् (kim) - what, why, how (interrogative particle)

• कथम् (katham) - how, in what manner, why

• अवश्यम् (avaśyam) - certainly, necessarily, undoubtedly

• हि (hi) - indeed, surely, for

• महाकल्पे (mahākalpe) - in the mahākalpa (a vast cosmic time cycle) (in the great cosmic period)

• सर्वे (sarve) - all, everyone

• मोक्षैकभागिनः (mokṣaikabhāginaḥ) - those whose sole share or destiny is liberation (mokṣa) (partakers of only liberation, having only liberation as their share)

Words meanings and morphology

अतः (ataḥ) - therefore, hence, from this

(indeclinable)

ablative of idam, used adverbially

स्मर्तुः (smartuḥ) - of the rememberer, of the one who remembers

(noun)

Genitive, masculine, singular of smartṛ

smartṛ - rememberer, one who remembers

agent noun

from √smṛ + tṛc

Root: smṛ (class 1)

अभावेन (abhāvena) - by the absence, due to the non-existence

(noun)

Instrumental, masculine, singular of abhāva

abhāva - absence, non-existence, annihilation

from a- (negation) + bhāva (existence)

Compound type : nañ-tatpuruṣa (a+bhāva)

• a – not, non-
  indeclinable
• bhāva – being, existence, state, feeling
  noun (masculine)
  from √bhū
  Root: bhū (class 1)

स्मृतिः (smṛtiḥ) - memory (smṛti) (memory, remembrance)

(noun)

Nominative, feminine, singular of smṛti

smṛti - memory, remembrance, tradition, legal/sacred tradition (smṛti)

from √smṛ

Root: smṛ (class 1)

वा (vā) - or, either

(indeclinable)

particle

Note: In this context, implies an rhetorical question 'or how could it arise?'.

उदेति (udeti) - arises, rises, comes forth

(verb)

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

Present Active Indicative

from ud- √i

Prefix: ud

Root: i (class 2)

किम् (kim) - what, why, how (interrogative particle)

(indeclinable)

कथम् (katham) - how, in what manner, why

(indeclinable)

interrogative adverb

अवश्यम् (avaśyam) - certainly, necessarily, undoubtedly

(indeclinable)

adverbial form of avaśya (necessary)

Root: vaś (class 1)

हि (hi) - indeed, surely, for

(indeclinable)

particle

महाकल्पे (mahākalpe) - in the mahākalpa (a vast cosmic time cycle) (in the great cosmic period)

(noun)

Locative, masculine, singular of mahākalpa

mahākalpa - great kalpa, a long period of time, a cosmic cycle, a day of Brahmā (mahākalpa)

Compound type : karmadhāraya (mahā+kalpa)

• mahā – great, large
  adjective
• kalpa – a cosmic period, an eon, a day of Brahmā
  noun (masculine)
  from √kḷp
  Root: kḷp (class 1)

सर्वे (sarve) - all, everyone

(pronoun)

Nominative, masculine, plural of sarva

sarva - all, every, whole

Note: Functions as an adjective here for an implied noun.

मोक्षैकभागिनः (mokṣaikabhāginaḥ) - those whose sole share or destiny is liberation (mokṣa) (partakers of only liberation, having only liberation as their share)

(adjective)

Nominative, masculine, plural of mokṣaikabhāgin

mokṣaikabhāgin - partaker of only liberation, having liberation as the only share

compound

Compound type : tatpuruṣa (mokṣa+eka+bhāgin)

• mokṣa – liberation, release, emancipation (mokṣa)
  noun (masculine)
  from √muc
  Root: muc (class 6)
• eka – one, sole, single, only
  numeral (masculine)
• bhāgin – sharing, participating, having a share
  adjective (masculine)
  agent noun/adjective
  from √bhaj + -in
  Root: bhaj (class 1)