योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-95, verse-19

पदार्थाभावसंसिद्धिस्तत्सिद्धौ कस्य वेदनम् ।
एवं तु वेदनाभावे नास्त्यहंत्वस्य कारणम् ॥ १९ ॥

padārthābhāvasaṃsiddhistatsiddhau kasya vedanam ,
evaṃ tu vedanābhāve nāstyahaṃtvasya kāraṇam 19

19. padārthābhāvasaṃsiddhiḥ tat siddhau kasya vedanam
evam tu vedanābhāve na asti ahaṃtvasya kāraṇam

19. padārthābhāvasaṃsiddhiḥ tat siddhau kasya vedanam.
evam tu vedanābhāve ahaṃtvasya kāraṇam na asti.

19. When the non-existence of objects (padārtha) is firmly established, then whose cognition (vedanam) can there be upon its establishment? Thus, however, in the absence of cognition, there is no cause for the sense of 'I'-ness (ahaṅkāra) to exist.

Words meanings summery:

• पदार्थाभावसंसिद्धिः (padārthābhāvasaṁsiddhiḥ) - the perfect establishment of the non-existence of objects

• तत् (tat) - that

• सिद्धौ (siddhau) - in the accomplishment, in the establishment

• कस्य (kasya) - whose, of what

• वेदनम् (vedanam) - cognition, knowing, feeling, perception

• एवम् (evam) - thus, in this manner, so

• तु (tu) - but, however, indeed

• वेदनाभावे (vedanābhāve) - in the absence of cognition

• न (na) - not, no

• अस्ति (asti) - is, exists

• अहंत्वस्य (ahaṁtvasya) - of the 'I'-ness, of the ego

• कारणम् (kāraṇam) - cause, reason

Words meanings and morphology

पदार्थाभावसंसिद्धिः (padārthābhāvasaṁsiddhiḥ) - the perfect establishment of the non-existence of objects

(noun)

Nominative, feminine, singular of padārthābhāvasaṃsiddhi

padārthābhāvasaṁsiddhi - the perfect establishment of the non-existence of objects

Compound type : tatpuruṣa (padārtha+abhāva+saṃsiddhi)

• padārtha – meaning of a word; object, thing, category
  noun (masculine)
• abhāva – non-existence, absence, annihilation
  noun (masculine)
  a (negation) + bhāva (existence)
• saṃsiddhi – perfect accomplishment, complete success, firm establishment
  noun (feminine)
  saṃ (prefix) + root sidh (to accomplish)
  Prefix: sam
  Root: sidh (class 4)

तत् (tat) - that

(pronoun)

Nominative, neuter, singular of tad

tad - that, he, she, it

Note: Here functioning as an adjective modifying 'siddhau' (establishment of *that* non-existence)

सिद्धौ (siddhau) - in the accomplishment, in the establishment

(noun)

Locative, feminine, singular of siddhi

siddhi - accomplishment, success, establishment, perfection

Derived from root sidh (to accomplish)

Root: sidh (class 4)

कस्य (kasya) - whose, of what

(pronoun)

Genitive, masculine, singular of ka

ka - who, what

वेदनम् (vedanam) - cognition, knowing, feeling, perception

(noun)

Nominative, neuter, singular of vedana

vedana - cognition, knowledge, perception, feeling

Derived from root vid (to know)

Root: vid (class 4)

एवम् (evam) - thus, in this manner, so

(indeclinable)

तु (tu) - but, however, indeed

(indeclinable)

वेदनाभावे (vedanābhāve) - in the absence of cognition

(noun)

Locative, masculine, singular of vedanābhāva

vedanābhāva - absence of cognition, lack of perception

vedanā (cognition) + abhāva (absence)

Compound type : tatpuruṣa (vedanā+abhāva)

• vedanā – cognition, perception, feeling, sensation
  noun (feminine)
  Derived from root vid (to know)
  Root: vid (class 4)
• abhāva – non-existence, absence, annihilation
  noun (masculine)
  a (negation) + bhāva (existence)

न (na) - not, no

(indeclinable)

अस्ति (asti) - is, exists

(verb)

3rd person , singular, active, present indicative (lat) of as

Root: as (class 2)

अहंत्वस्य (ahaṁtvasya) - of the 'I'-ness, of the ego

(noun)

Genitive, neuter, singular of ahaṃtva

ahaṁtva - the state of being 'I', 'I'-ness, egoity, egohood

aham (I) + -tva (suffix for 'state of being')

Compound type : tatpuruṣa (aham+tva)

• aham – I (first person pronoun)
  pronoun
• tva – suffix denoting 'state of being', 'ness'
  indeclinable
  Primary suffix (taddhita)

कारणम् (kāraṇam) - cause, reason

(noun)

Nominative, neuter, singular of kāraṇa

kāraṇa - cause, reason, instrument

Derived from root kṛ (to do) + lyuṭ suffix

Root: kṛ (class 8)