योगवासिष्ठः yogavāsiṣṭhaḥ - book-4, chapter-33, verse-66

शरीरास्थामयापुण्यदुरहंकारवर्जनम् ।
अत्यन्तपरमं श्रेय एतदेव परं पदम् ॥ ६६ ॥

śarīrāsthāmayāpuṇyadurahaṃkāravarjanam ,
atyantaparamaṃ śreya etadeva paraṃ padam 66

66. śarīra-āsthā-amaya-apuṇya-dur-ahaṅkāra-varjanam
ati-anta-paramam śreyaḥ etat eva param padam

66. śarīra-āsthā-amaya-apuṇya-dur-ahaṅkāra-varjanam
ati-anta-paramam śreyaḥ (bhavati); etat eva param padam (asti)

66. The complete renunciation of the false ego (ahaṅkāra) stemming from attachment to the body, disease, and demerit is the ultimate good (śreyas). This alone is the supreme state.

Words meanings summery:

• शरीर-आस्था-अमय-अपुण्य-दुर्-अहङ्कार-वर्जनम् (śarīra-āsthā-amaya-apuṇya-dur-ahaṅkāra-varjanam) - the abandonment of the evil ego (ahaṅkāra) connected to body-attachment, disease, and demerit

• अति-अन्त-परमम् (ati-anta-paramam) - extremely supreme; ultimate

• श्रेयः (śreyaḥ) - the highest spiritual good (good; welfare; ultimate good (śreyas))

• एतत् (etat) - referring to the aforementioned abandonment of ego (ahaṅkāra) (this)

• एव (eva) - emphasizes that this (abandonment) is the supreme state (indeed; only; just)

• परम् (param) - supreme; highest; ultimate

• पदम् (padam) - the ultimate spiritual state (state; position; abode)

Words meanings and morphology

शरीर-आस्था-अमय-अपुण्य-दुर्-अहङ्कार-वर्जनम् (śarīra-āsthā-amaya-apuṇya-dur-ahaṅkāra-varjanam) - the abandonment of the evil ego (ahaṅkāra) connected to body-attachment, disease, and demerit

(noun)

Nominative, neuter, singular of śarīra-āsthā-amaya-apuṇya-dur-ahaṅkāra-varjana

śarīra-āsthā-amaya-apuṇya-dur-ahaṅkāra-varjana - abandonment of evil ego (ahaṅkāra) linked to body-attachment, disease, and demerit

Compound type : tatpuruṣa (śarīra+āsthā+amaya+apuṇya+dur-ahaṅkāra+varjana)

• śarīra – body
  noun (neuter)
• āsthā – attachment; reliance; faith; fixation
  noun (feminine)
  Prefix: ā
  Root: sthā (class 1)
• amaya – disease; sickness; freedom from illness
  noun (masculine)
  Prefix: a
  Root: may (class 1)
• apuṇya – demerit; vice; unmeritorious action
  noun (neuter)
  a + puṇya
  Prefix: a
• dur-ahaṅkāra – evil ego; false egoism (ahaṅkāra)
  noun (masculine)
  Prefixes: dur+aham
  Root: kṛ (class 8)
• varjana – abandonment; avoidance; renunciation
  noun (neuter)
  vṛj + lyuṭ (ana)
  Root: vṛj (class 10)

Note: Subject of the implied verb 'is'.

अति-अन्त-परमम् (ati-anta-paramam) - extremely supreme; ultimate

(adjective)

Nominative, neuter, singular of ati-anta-parama

ati-anta-parama - extremely supreme; ultimate; highest possible

Compound type : karmadhāraya (ati-anta+parama)

• ati-anta – extreme; exceedingly; very
  adjective (masculine)
  ati + anta
  Prefix: ati
• parama – supreme; highest; best
  adjective (masculine)

Note: Modifies 'śreyaḥ'.

श्रेयः (śreyaḥ) - the highest spiritual good (good; welfare; ultimate good (śreyas))

(noun)

Nominative, neuter, singular of śreyas

śreyas - good; welfare; prosperity; ultimate good

Root: śrī

Note: Predicate nominative.

एतत् (etat) - referring to the aforementioned abandonment of ego (ahaṅkāra) (this)

(pronoun)

Nominative, neuter, singular of etas

etas - this

एव (eva) - emphasizes that this (abandonment) is the supreme state (indeed; only; just)

(indeclinable)

परम् (param) - supreme; highest; ultimate

(adjective)

Nominative, neuter, singular of parama

parama - supreme; highest; best

Note: Modifies 'padam'.

पदम् (padam) - the ultimate spiritual state (state; position; abode)

(noun)

Nominative, neuter, singular of pada

pada - step; foot; position; state; abode

Root: pad (class 4)

Note: Predicate nominative.