योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-113, verse-26

अत्यन्तविस्मृतैवातिसुखाय भ्रमदायिनी ।
दुःस्वप्नकलनेवेयमनर्थायैव तर्किता ॥ २६ ॥

atyantavismṛtaivātisukhāya bhramadāyinī ,
duḥsvapnakalaneveyamanarthāyaiva tarkitā 26

26. atyantavismṛtā eva atisukhāya bhramadāyinī |
duḥsvapnakalanā iva iyam anarthāya eva tarkitā ||

26. atyantavismṛtā eva atisukhāya bhramadāyinī
iyam duḥsvapnakalanā iva anarthāya eva tarkitā

26. Even when completely forgotten, it bestows great delusion for (the sake of) extreme pleasure. This (illusion) is indeed considered to lead only to misfortune, like the imagining of a bad dream.

Words meanings summery:

• अत्यन्तविस्मृता (atyantavismṛtā) - completely forgotten, utterly ignored

• एव (eva) - even, indeed

• अतिसुखाय (atisukhāya) - for great happiness, for excessive pleasure

• भ्रमदायिनी (bhramadāyinī) - causing delusion, creating illusion

• दुःस्वप्नकलना (duḥsvapnakalanā) - the imagining/perception of a bad dream

• इव (iva) - like, as

• इयम् (iyam) - this (feminine)

• अनर्थाय (anarthāya) - for misfortune, for harm

• एव (eva) - indeed, only

• तर्किता (tarkitā) - considered, conjectured, thought of

Words meanings and morphology

अत्यन्तविस्मृता (atyantavismṛtā) - completely forgotten, utterly ignored

(adjective)

Nominative, feminine, singular of atyantavismṛta

atyantavismṛta - completely forgotten, utterly ignored

From atyanta (extreme) + vismṛta (forgotten).

Compound type : karmadhāraya (atyanta+vismṛta)

• atyanta – extreme, endless, perpetual
  adjective (masculine/neuter)
  Prefix: ati
• vismṛta – forgotten, neglected
  adjective (masculine/neuter)
  Past Passive Participle
  root smṛ + prefix vi
  Prefix: vi
  Root: smṛ (class 1)

Note: Qualifies the implied feminine subject.

एव (eva) - even, indeed

(indeclinable)

अतिसुखाय (atisukhāya) - for great happiness, for excessive pleasure

(noun)

Dative, neuter, singular of atisukha

atisukha - great happiness, excessive pleasure

ati (excessive) + sukha (happiness).

Compound type : avyayībhāva (ati+sukha)

• ati – excessively, extremely
  indeclinable
• sukha – happiness, pleasure, ease
  noun (neuter)

Note: Indicates purpose ('for the sake of').

भ्रमदायिनी (bhramadāyinī) - causing delusion, creating illusion

(adjective)

Nominative, feminine, singular of bhramadāyinī

bhramadāyin - causing delusion, creating illusion/error

Agent noun

From bhrama (delusion) + dāyin (giver).

Compound type : upapada tatpuruṣa (bhrama+dāyin)

• bhrama – delusion, error, wandering
  noun (masculine)
  Root: bhram (class 1)
• dāyin – giving, bestowing
  adjective (masculine)
  Agent noun
  root dā + in
  Root: dā (class 3)

Note: Qualifies the implied feminine subject.

दुःस्वप्नकलना (duḥsvapnakalanā) - the imagining/perception of a bad dream

(noun)

Nominative, feminine, singular of duḥsvapnakalanā

duḥsvapnakalanā - imagining of a bad dream, perception of a nightmare

duḥsvapna (bad dream) + kalanā (imagining).

Compound type : ṣaṣṭhī tatpuruṣa (duḥsvapna+kalanā)

• duḥsvapna – bad dream, nightmare
  noun (masculine/neuter)
  Prefix: dus
• kalanā – imagining, reckoning, perception
  noun (feminine)
  root kal + anā
  Root: kal (class 1)

Note: Part of the simile.

इव (iva) - like, as

(indeclinable)

इयम् (iyam) - this (feminine)

(pronoun)

Nominative, feminine, singular of idam

idam - this, that

Feminine nominative singular form of idam.

अनर्थाय (anarthāya) - for misfortune, for harm

(noun)

Dative, masculine, singular of anartha

anartha - harm, misfortune, useless, meaningless

Negative prefix a + artha.

Compound type : nañ-tatpuruṣa (a+artha)

• a – not, un-
  indeclinable
• artha – purpose, meaning, wealth, object
  noun (masculine)
  Root: arth (class 10)

Note: Indicates purpose.

एव (eva) - indeed, only

(indeclinable)

तर्किता (tarkitā) - considered, conjectured, thought of

(adjective)

Nominative, feminine, singular of tarkita

tarkita - considered, conjectured, thought of, ascertained

Past Passive Participle

root tark + ta

Root: tark (class 10)

Note: Predicative adjective for the implied feminine subject (iyam).