योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-22, verse-58

कर्म कुर्वन्नकुर्वन्वा वीतरागो निरामयः ।
निर्मना नित्यनिर्वाणः पुमानात्मनि तिष्ठति ॥ ५८ ॥

karma kurvannakurvanvā vītarāgo nirāmayaḥ ,
nirmanā nityanirvāṇaḥ pumānātmani tiṣṭhati 58

58. karma kurvan akurvan vā vītarāgaḥ nirāmayaḥ
nirmanāḥ nityanirvāṇaḥ pumān ātmani tiṣṭhati

58. pumān karma kurvan vā akurvan vītarāgaḥ
nirāmayaḥ nirmanāḥ nityanirvāṇaḥ ātmani tiṣṭhati

58. A person (puruṣa), free from attachment, peaceful, without mental activity, and experiencing eternal liberation (nirvāṇa), remains steadfast in the Self (ātman), whether engaged in action (karma) or not.

Words meanings summery:

• कर्म (karma) - action, work, deed

• कुर्वन् (kurvan) - doing, performing

• अकुर्वन् (akurvan) - not doing, not performing

• वा (vā) - or, alternatively

• वीतरागः (vītarāgaḥ) - free from attachment, passionless, dispassionate

• निरामयः (nirāmayaḥ) - free from illness, healthy, peaceful, free from distress

• निर्मनाः (nirmanāḥ) - without mind, thoughtless, free from mental activity

• नित्यनिर्वाणः (nityanirvāṇaḥ) - eternally liberated, in constant cessation (nirvāṇa)

• पुमान् (pumān) - a man, a person, the puruṣa

• आत्मनि (ātmani) - in the Self, in the soul

• तिष्ठति (tiṣṭhati) - stands, remains, abides

Words meanings and morphology

कर्म (karma) - action, work, deed

(noun)

Accusative, neuter, singular of karma

karma - action, work, deed, religious rite, destiny

Root: kṛ (class 8)

कुर्वन् (kurvan) - doing, performing

(participle)

Nominative, masculine, singular of kurvat

kurvat - doing, performing

Present Active Participle

From root kṛ (to do) with śatṛ suffix.

Root: kṛ (class 8)

अकुर्वन् (akurvan) - not doing, not performing

(participle)

Nominative, masculine, singular of akurvat

akurvat - not doing, not performing

Present Active Participle (negative)

Negative form of kurvat, from root kṛ (to do) with prefix 'a' (not).

Compound type : nañ-tatpuruṣa (a+kurvat)

• a – not, non
  indeclinable
• kurvat – doing, performing
  participle
  Present Active Participle
  From root kṛ (to do) with śatṛ suffix.
  Root: kṛ (class 8)

वा (vā) - or, alternatively

(indeclinable)

वीतरागः (vītarāgaḥ) - free from attachment, passionless, dispassionate

(adjective)

Nominative, masculine, singular of vītarāga

vītarāga - free from passion/attachment, dispassionate

Compound type : bahuvrīhi (vīta+rāga)

• vīta – gone, departed, disappeared
  participle
  Past Passive Participle
  From root i (to go) with prefix vi.
  Prefix: vi
  Root: i (class 2)
• rāga – color, passion, attachment, desire
  noun (masculine)
  Root: rañj (class 1)

निरामयः (nirāmayaḥ) - free from illness, healthy, peaceful, free from distress

(adjective)

Nominative, masculine, singular of nirāmaya

nirāmaya - free from illness/distress, healthy, sound

Compound type : bahuvrīhi (nir+āmaya)

• nir – without, out, free from
  indeclinable
• āmaya – illness, disease, distress
  noun (masculine)
  Prefix: ā
  Root: am (class 1)

निर्मनाः (nirmanāḥ) - without mind, thoughtless, free from mental activity

(adjective)

Nominative, masculine, singular of nirmanas

nirmanas - without mind, thoughtless

Compound type : bahuvrīhi (nir+manas)

• nir – without, out, free from
  indeclinable
• manas – mind, intellect, thought, heart
  noun (neuter)
  Root: man (class 4)

नित्यनिर्वाणः (nityanirvāṇaḥ) - eternally liberated, in constant cessation (nirvāṇa)

(adjective)

Nominative, masculine, singular of nityanirvāṇa

nityanirvāṇa - eternally liberated, in constant cessation

Compound type : karmadhāraya (nitya+nirvāṇa)

• nitya – eternal, perpetual, constant, permanent
  adjective
• nirvāṇa – extinction, cessation, liberation, ultimate freedom
  noun (neuter)
  Prefix: nir
  Root: vā (class 2)

पुमान् (pumān) - a man, a person, the puruṣa

(noun)

Nominative, masculine, singular of pumas

pumas - man, male, person, spirit, puruṣa

आत्मनि (ātmani) - in the Self, in the soul

(noun)

Locative, masculine, singular of ātman

ātman - self, soul, spirit, essence

तिष्ठति (tiṣṭhati) - stands, remains, abides

(verb)

3rd person , singular, active, present indicative (laṭ) of sthā

Root verb, class 1 (divādi) and 3 (juhotyādi) depending on usage, but tiṣṭhati is class 1.

Root: sthā (class 1)