योगवासिष्ठः yogavāsiṣṭhaḥ - book-5, chapter-78, verse-44

विकल्पबहुलास्त्वेते स्वाभ्यासेन समाधयः ।
परमोपशमायाशु संप्रयान्त्यविकल्पताम् ॥ ४४ ॥

vikalpabahulāstvete svābhyāsena samādhayaḥ ,
paramopaśamāyāśu saṃprayāntyavikalpatām 44

44. vikalpa-bahulāḥ tu ete sva-abhyāsena samādhayaḥ
parama-upaśamāya āśu samprayānti avikalpatām

44. tu ete vikalpa-bahulāḥ samādhayaḥ sva-abhyāsena
parama-upaśamāya āśu avikalpatām samprayānti

44. Indeed, these concentrations (samādhi), initially characterized by many mental constructs, quickly move towards a state of non-differentiation (avikalpatā) for supreme tranquility, through their own dedicated practice.

Words meanings summery:

• विकल्प-बहुलाः (vikalpa-bahulāḥ) - full of mental constructs, characterized by many distinctions

• तु (tu) - but, indeed, however

• एते (ete) - these

• स्व-अभ्यासेन (sva-abhyāsena) - by one's own practice, through self-practice

• समाधयः (samādhayaḥ) - concentrations, states of meditative absorption (samādhi)

• परम-उपशमाय (parama-upaśamāya) - for supreme tranquility, for ultimate cessation

• आशु (āśu) - quickly, swiftly

• सम्प्रयान्ति (samprayānti) - they proceed, they go, they attain

• अविकल्पताम् (avikalpatām) - to the state of non-distinction, non-imagination

Words meanings and morphology

विकल्प-बहुलाः (vikalpa-bahulāḥ) - full of mental constructs, characterized by many distinctions

(adjective)

Nominative, masculine, plural of vikalpa-bahula

vikalpa-bahula - abounding in mental constructs/distinctions, full of imagination

Compound type : Bahuvrīhi or Tatpuruṣa (genitive) (vikalpa+bahula)

• vikalpa – mental construct, imagination, doubt, distinction
  noun (masculine)
  From 'vi' + 'kḷp' + 'a'
  Prefix: vi
  Root: kḷp (class 1)
• bahula – abundant, frequent, numerous, much
  adjective

तु (tu) - but, indeed, however

(indeclinable)

एते (ete) - these

(pronoun)

Nominative, masculine, plural of etad

etad - this, these

Masculine nominative plural of 'etad'

स्व-अभ्यासेन (sva-abhyāsena) - by one's own practice, through self-practice

(noun)

Instrumental, masculine, singular of sva-abhyāsa

sva-abhyāsa - own practice, self-practice

Compound type : Tatpuruṣa (genitive) or Karmadhāraya (sva+abhyāsa)

• sva – own, self, one's own
  adjective
• abhyāsa – practice, repetition, habituation
  noun (masculine)
  From 'abh' + 'as' + 'ghañ'
  Prefix: abhi
  Root: as (class 4)

समाधयः (samādhayaḥ) - concentrations, states of meditative absorption (samādhi)

(noun)

Nominative, masculine, plural of samādhi

samādhi - concentration, meditative absorption, union, composure

From 'sam' + 'ā' + 'dhā' + 'i'

Prefixes: sam+ā

Root: dhā (class 3)

परम-उपशमाय (parama-upaśamāya) - for supreme tranquility, for ultimate cessation

(noun)

Dative, masculine, singular of parama-upaśama

parama-upaśama - supreme tranquility, ultimate cessation

Compound type : Karmadhāraya (parama+upaśama)

• parama – supreme, highest, ultimate
  adjective
  Superlative of 'para' (other)
• upaśama – tranquility, cessation, calming, pacification
  noun (masculine)
  From 'upa' + 'śam' + 'a'
  Prefix: upa
  Root: śam (class 4)

आशु (āśu) - quickly, swiftly

(indeclinable)

Adverbial form, can also be an adjective

सम्प्रयान्ति (samprayānti) - they proceed, they go, they attain

(verb)

3rd person , plural, active, present indicative (laṭ) of sam-pra-yā

Present active, third person plural

Prefixes: sam+pra

Root: yā (class 2)

अविकल्पताम् (avikalpatām) - to the state of non-distinction, non-imagination

(noun)

Accusative, feminine, singular of avikalpatā

avikalpatā - state of non-distinction, absence of mental constructs/imagination

From 'a' (negation) + 'vikalpa' + 'tā' (suffix for abstract noun)

Compound type : Nañ-Tatpuruṣa or Prādisamāsa (a+vikalpatā)

• a – not, non-, un-
  indeclinable
  Negative prefix
• vikalpatā – state of mental constructs/imagination, distinctness
  noun (feminine)
  From 'vikalpa' + 'tā'