योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-81, verse-87

विनाशपरिणामस्य दिनरात्रिक्रमस्थितेः ।
अभावोऽप्येकवस्तुस्थो गतो मुख्यप्रमाणताम् ॥ ८७ ॥

vināśapariṇāmasya dinarātrikramasthiteḥ ,
abhāvo'pyekavastustho gato mukhyapramāṇatām 87

87. vināśapariṇāmasya dinarātrakramasthiteḥ abhāvaḥ
api ekavastusthaḥ gataḥ mukhyapramāṇatām

87. vināśapariṇāmasya dinarātrakramasthiteḥ,
ekavastusthaḥ abhāvaḥ api mukhyapramāṇatām gataḥ

87. Even non-existence, when it pertains to a single object within the transformation of destruction, as exemplified by the sequence of day and night, has attained the status of a primary means of knowledge (pramāṇa).

Words meanings summery:

• विनाशपरिणामस्य (vināśapariṇāmasya) - of the transformation of destruction

• दिनरात्रक्रमस्थितेः (dinarātrakramasthiteḥ) - from the established sequence like day and night, from the arrangement of day and night

• अभावः (abhāvaḥ) - non-existence, absence, negation

• अपि (api) - also, even, too

• एकवस्तुस्थः (ekavastusthaḥ) - residing in one object

• गतः (gataḥ) - gone, attained, reached, become

• मुख्यप्रमाणताम् (mukhyapramāṇatām) - the state of being the primary means of knowledge (pramāṇa)

Words meanings and morphology

विनाशपरिणामस्य (vināśapariṇāmasya) - of the transformation of destruction

(noun)

Genitive, masculine, singular of vināśapariṇāma

vināśapariṇāma - transformation of destruction

Compound type : tatpurusha (vināśa+pariṇāma)

• vināśa – destruction, disappearance
  noun (masculine)
  Prefix: vi
  Root: naś (class 4)
• pariṇāma – transformation, change
  noun (masculine)
  Prefix: pari
  Root: nam (class 1)

दिनरात्रक्रमस्थितेः (dinarātrakramasthiteḥ) - from the established sequence like day and night, from the arrangement of day and night

(noun)

Ablative, feminine, singular of dinarātrakramasthati

dinarātrakramasthati - established sequence of day and night

Compound type : tatpurusha (dina+rātri+krama+sthiti)

• dina – day
  noun (neuter)
• rātri – night
  noun (feminine)
• krama – sequence, order
  noun (masculine)
  Root: kram (class 1)
• sthiti – established state, existence, position
  noun (feminine)
  Root: sthā (class 1)

अभावः (abhāvaḥ) - non-existence, absence, negation

(noun)

Nominative, masculine, singular of abhāva

abhāva - non-existence, absence, negation

Prefix: a

Root: bhū (class 1)

अपि (api) - also, even, too

(indeclinable)

एकवस्तुस्थः (ekavastusthaḥ) - residing in one object

(adjective)

Nominative, masculine, singular of ekavastustha

ekavastustha - residing in one object

Compound type : tatpurusha (eka+vastu+stha)

• eka – one, single
  numeral (masculine)
• vastu – object, thing, substance
  noun (neuter)
• stha – standing, situated, residing
  suffix (masculine)
  from root sthā (to stand)
  Root: sthā (class 1)

गतः (gataḥ) - gone, attained, reached, become

(participle)

Nominative, masculine, singular of gata

gata - gone, attained, reached, become

Past Passive Participle

from root gam (to go)

Root: gam (class 1)

मुख्यप्रमाणताम् (mukhyapramāṇatām) - the state of being the primary means of knowledge (pramāṇa)

(noun)

Accusative, feminine, singular of mukhyapramāṇatā

mukhyapramāṇatā - the state of being the primary means of knowledge

Compound type : tatpurusha (mukhya+pramāṇa+tā)

• mukhya – chief, primary, principal
  adjective (masculine)
• pramāṇa – means of knowledge (pramāṇa), proof
  noun (neuter)
  Prefix: pra
  Root: mā (class 2)
• tā – suffix forming abstract nouns, 'the state of being'
  suffix (feminine)