योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-109, verse-39

अन्तर्हससि तां कच्चिद्दशापेलवतां धियः ।
तास्तुच्छतृष्णाकलनास्ताः संकल्पकुकल्पनाः ॥ ३९ ॥

antarhasasi tāṃ kacciddaśāpelavatāṃ dhiyaḥ ,
tāstucchatṛṣṇākalanāstāḥ saṃkalpakukalpanāḥ 39

39. antarhasasi tām kaccit daśāpelavatām dhiyaḥ
tāḥ tucchatṛṣṇākalanāḥ tāḥ saṅkalpakukalpanāḥ

39. kaccit antarhasasi tām dhiyaḥ daśāpelavatām
tāḥ tucchatṛṣṇākalanāḥ tāḥ saṅkalpakukalpanāḥ

39. Cūḍālā: "Do you, perhaps, inwardly smile at that instability of the mind's condition? Those are perceptions of trivial desires and misguided imaginations born of resolves."

Words meanings summery:

• अन्तर्हससि (antarhasasi) - you smile inwardly

• ताम् (tām) - that (referring to daśāpelavatām) (that (feminine accusative singular))

• कच्चित् (kaccit) - perhaps, implying a question (perhaps, indeed (interrogative particle))

• दशापेलवताम् (daśāpelavatām) - the instability of the mind's condition (the fragility/instability of a state/condition)

• धियः (dhiyaḥ) - of the mind, of the intellect (of the intellect, of the mind, of understanding)

• ताः (tāḥ) - those (referring to the delusions) (those (feminine nominative plural))

• तुच्छतृष्णाकलनाः (tucchatṛṣṇākalanāḥ) - perceptions of trivial desires (calculations/perceptions of trivial desires)

• ताः (tāḥ) - those (referring to the delusions) (those (feminine nominative plural))

• सङ्कल्पकुकल्पनाः (saṅkalpakukalpanāḥ) - misguided imaginations born of resolves (bad imaginings/fancies arising from resolves)

Words meanings and morphology

अन्तर्हससि (antarhasasi) - you smile inwardly

(verb)

2nd person , singular, active, present (laṭ) of antarhas

Present active

From antar (within, inwardly) + root has (to laugh, smile)

Prefix: antar

Root: has (class 1)

ताम् (tām) - that (referring to daśāpelavatām) (that (feminine accusative singular))

(pronoun)

Accusative, feminine, singular of tad

tad - that, he, she, it

कच्चित् (kaccit) - perhaps, implying a question (perhaps, indeed (interrogative particle))

(indeclinable)

दशापेलवताम् (daśāpelavatām) - the instability of the mind's condition (the fragility/instability of a state/condition)

(noun)

Accusative, feminine, singular of daśāpelavatā

daśāpelavatā - the state of being fragile/unstable in condition

Compound: daśā (state) + apelavatā (fragility). Apelavatā is derived from apela (not firm) + vat (possessive suffix) + tā (feminine suffix for abstract noun).

Compound type : tatpurusha (daśā+apelavatā)

• daśā – state, condition, period of life
  noun (feminine)
• apelavatā – fragility, instability, weakness
  noun (feminine)
  Derived from a-pela (not firm/steady)
  Prefix: a

धियः (dhiyaḥ) - of the mind, of the intellect (of the intellect, of the mind, of understanding)

(noun)

Genitive, feminine, singular of dhi

dhi - intellect, mind, thought, understanding

From root dhyai (to meditate)

Root: dhyai (class 1)

ताः (tāḥ) - those (referring to the delusions) (those (feminine nominative plural))

(pronoun)

Nominative, feminine, plural of tad

tad - that, he, she, it

तुच्छतृष्णाकलनाः (tucchatṛṣṇākalanāḥ) - perceptions of trivial desires (calculations/perceptions of trivial desires)

(noun)

Nominative, feminine, plural of tucchatṛṣṇākalanā

tucchatṛṣṇākalanā - calculations or perceptions of vain/insignificant desires

Compound: tuccha (trivial) + tṛṣṇā (desire) + kalanā (calculation/perception)

Compound type : tatpurusha (tuccha+tṛṣṇā+kalanā)

• tuccha – empty, vain, trivial, insignificant
  adjective (masculine)
• tṛṣṇā – thirst, desire, craving
  noun (feminine)
• kalanā – calculation, reckoning, perception, imagination
  noun (feminine)
  From root kal (to calculate, perceive)
  Root: kal (class 1)

ताः (tāḥ) - those (referring to the delusions) (those (feminine nominative plural))

(pronoun)

Nominative, feminine, plural of tad

tad - that, he, she, it

सङ्कल्पकुकल्पनाः (saṅkalpakukalpanāḥ) - misguided imaginations born of resolves (bad imaginings/fancies arising from resolves)

(noun)

Nominative, feminine, plural of saṅkalpakukalpanā

saṅkalpakukalpanā - bad or misguided imaginings/fancies arising from mental resolves/intentions

Compound: saṅkalpa (resolve) + ku (bad) + kalpanā (imagination)

Compound type : tatpurusha (saṅkalpa+kukalpanā)

• saṅkalpa – resolve, intention, mental formation, determination
  noun (masculine)
  From sam-kalp (to determine, resolve)
  Prefix: sam
  Root: kḷp (class 1)
• ku – bad, evil, wrong, despised
  indeclinable
• kalpanā – imagination, fancy, fabrication, mental construct
  noun (feminine)
  From root kḷp (to arrange, devise)
  Root: kḷp (class 1)