महाभारतः mahābhārataḥ - book-14, chapter-47, verse-10

निर्द्वंद्वो निर्नमस्कारो निःस्वधाकार एव च ।
निर्गुणं नित्यमद्वंद्वं प्रशमेनैव गच्छति ॥१०॥

10. nirdvaṁdvo nirnamaskāro niḥsvadhākāra eva ca ,
nirguṇaṁ nityamadvaṁdvaṁ praśamenaiva gacchati.

10. nirdvandvaḥ nirnamaskāraḥ niḥsvadhākāraḥ eva ca
nirguṇam nityam advandvam praśamena eva gacchati

10. yaḥ nirdvandvaḥ nirnamaskāraḥ niḥsvadhākāraḥ ca eva
saḥ nirguṇam nityam advandvam praśamena eva gacchati

10. One who is free from dualities, free from ritualistic salutations, and free from ancestral offerings, attains the attributeless, eternal, and non-dual state solely through profound tranquility.

Words meanings summery:

• निर्द्वन्द्वः (nirdvandvaḥ) - free from dualities, beyond pairs of opposites

• निर्नमस्कारः (nirnamaskāraḥ) - free from the need for ritualistic salutations (free from salutations/obeisances)

• निःस्वधाकारः (niḥsvadhākāraḥ) - free from 'svadhā' invocations/offerings to ancestors

• एव (eva) - certainly, indeed, only, just

• च (ca) - and, also

• निर्गुणम् (nirguṇam) - the attributeless state of reality (attributeless, without qualities)

• नित्यम् (nityam) - the eternal state of reality (eternal, perpetual)

• अद्वन्द्वम् (advandvam) - the non-dual state of reality (non-dual, free from pairs of opposites)

• प्रशमेन (praśamena) - by tranquility, by calmness, by quietude

• एव (eva) - certainly, indeed, only, just

• गच्छति (gacchati) - goes, attains, reaches

Words meanings and morphology

निर्द्वन्द्वः (nirdvandvaḥ) - free from dualities, beyond pairs of opposites

(adjective)

Nominative, masculine, singular of nirdvandva

nirdvandva - free from pairs of opposites, undifferentiated

Bahuvrīhi compound: 'nir' (without) + 'dvandva' (duality, pair of opposites).

Compound type : bahuvrīhi (nir+dvandva)

• nir – without, free from
  indeclinable
• dvandva – pair, couple, duality, pair of opposites
  noun (neuter)

निर्नमस्कारः (nirnamaskāraḥ) - free from the need for ritualistic salutations (free from salutations/obeisances)

(adjective)

Nominative, masculine, singular of nirnamaskāra

nirnamaskāra - without salutations or obeisances

Bahuvrīhi compound: 'nir' (without) + 'namaskāra' (salutation).

Compound type : bahuvrīhi (nir+namaskāra)

• nir – without, free from
  indeclinable
• namaskāra – salutation, obeisance, bowing
  noun (masculine)

Note: Refers to being beyond the need for such rituals or social customs.

निःस्वधाकारः (niḥsvadhākāraḥ) - free from 'svadhā' invocations/offerings to ancestors

(adjective)

Nominative, masculine, singular of niḥsvadhākāra

niḥsvadhākāra - without uttering 'svadhā', without ancestral offerings

Bahuvrīhi compound: 'niḥ' (without) + 'svadhākāra' (uttering svadhā).

Compound type : bahuvrīhi (niḥ+svadhākāra)

• niḥ – without, free from (variant of nir)
  indeclinable
• svadhākāra – utterance of svadhā (an oblation to ancestors)
  noun (masculine)
  Compound of 'svadhā' (oblation to ancestors) and 'kāra' (making, uttering).

Note: Svadhā is an exclamation used when offering oblations to deceased ancestors (pitṛs).

एव (eva) - certainly, indeed, only, just

(indeclinable)

च (ca) - and, also

(indeclinable)

निर्गुणम् (nirguṇam) - the attributeless state of reality (attributeless, without qualities)

(adjective)

Accusative, neuter, singular of nirguṇa

nirguṇa - without qualities or attributes, supra-qualitative

Bahuvrīhi compound: 'nir' (without) + 'guṇa' (quality).

Compound type : bahuvrīhi (nir+guṇa)

• nir – without, free from
  indeclinable
• guṇa – quality, attribute, constituent (of prakṛti)
  noun (masculine)

Note: Here functions as an object or adverbial qualifier for the state attained.

नित्यम् (nityam) - the eternal state of reality (eternal, perpetual)

(adjective)

Accusative, neuter, singular of nitya

nitya - eternal, permanent, constant

Note: Functions as an object or adverbial qualifier for the state attained.

अद्वन्द्वम् (advandvam) - the non-dual state of reality (non-dual, free from pairs of opposites)

(adjective)

Accusative, neuter, singular of advandva

advandva - without dualities, non-dual, free from pairs of opposites

Negative Tatpuruṣa compound: 'a' (not) + 'dvandva' (duality).

Compound type : tatpuruṣa (a+dvandva)

• a – not, un-
  indeclinable
• dvandva – pair, couple, duality, pair of opposites
  noun (neuter)

Note: Functions as an object or adverbial qualifier for the state attained.

प्रशमेन (praśamena) - by tranquility, by calmness, by quietude

(noun)

Instrumental, masculine, singular of praśama

praśama - tranquility, calmness, cessation

From root 'śam' with prefix 'pra'.

Prefix: pra

Root: śam (class 4)

एव (eva) - certainly, indeed, only, just

(indeclinable)

गच्छति (gacchati) - goes, attains, reaches

(verb)

3rd person , singular, active, present (laṭ) of gam

Present Tense, Parasmaipada

Root: gam (class 1)