महाभारतः mahābhārataḥ - book-12, chapter-293, verse-39

अनादिनिधनोऽनन्तः सर्वदर्शी निरामयः ।
केवलं त्वभिमानित्वाद्गुणेष्वगुण उच्यते ॥३९॥

39. anādinidhano'nantaḥ sarvadarśī nirāmayaḥ ,
kevalaṁ tvabhimānitvādguṇeṣvaguṇa ucyate.

39. anādinidhanaḥ anantaḥ sarvadarśī nirāmayaḥ
kevalam tu abhimānitvāt guṇeṣu aguṇaḥ ucyate

39. anādinidhanaḥ anantaḥ sarvadarśī nirāmayaḥ
kevalam tu abhimānitvāt guṇeṣu aguṇaḥ ucyate

39. The Self (ātman) is without beginning or end, infinite, all-seeing, and free from all affliction. However, it is only referred to as 'without qualities' (aguṇa) precisely due to its egoistic identification (abhimāna) with the constituents (guṇa) of material nature (prakṛti).

Words meanings summery:

• अनादिनिधनः (anādinidhanaḥ) - without beginning or end, eternal, indestructible

• अनन्तः (anantaḥ) - infinite, endless, boundless

• सर्वदर्शी (sarvadarśī) - all-seeing, omniscient

• निरामयः (nirāmayaḥ) - free from disease or affliction, healthy, flawless

• केवलम् (kevalam) - only, merely, solely

• तु (tu) - but, on the other hand, indeed, however

• अभिमानित्वात् (abhimānitvāt) - due to egoism, because of identification, owing to the sense of 'I' or 'mine'

• गुणेषु (guṇeṣu) - among the qualities, in the constituents

• अगुणः (aguṇaḥ) - without qualities, attributeless, devoid of the three guṇas

• उच्यते (ucyate) - is said, is called, is declared

Words meanings and morphology

अनादिनिधनः (anādinidhanaḥ) - without beginning or end, eternal, indestructible

(adjective)

Nominative, masculine, singular of anādinidhana

anādinidhana - without beginning or end, eternal, indestructible

Compound type : bahuvrīhi (an+ādi+nidhana)

• an – negation, without
  indeclinable
• ādi – beginning, origin
  noun (masculine)
• nidhana – end, destruction, death
  noun (neuter)
  Prefix: ni

अनन्तः (anantaḥ) - infinite, endless, boundless

(adjective)

Nominative, masculine, singular of ananta

ananta - infinite, endless, boundless; the infinite; name of Viṣṇu or Śeṣa

Compound type : bahuvrīhi (an+anta)

• an – negation, without
  indeclinable
• anta – end, limit
  noun (masculine)

सर्वदर्शी (sarvadarśī) - all-seeing, omniscient

(adjective)

Nominative, masculine, singular of sarvadarśin

sarvadarśin - all-seeing, omniscient

Compound type : tatpuruṣa (sarva+darśin)

• sarva – all, every
  pronoun (neuter)
• darśin – seeing, knowing, showing
  adjective (masculine)
  agent noun/adjective
  Suffix -in from root dṛś
  Root: dṛś (class 1)

Note: Long ī in nominative singular masculine.

निरामयः (nirāmayaḥ) - free from disease or affliction, healthy, flawless

(adjective)

Nominative, masculine, singular of nirāmaya

nirāmaya - free from disease or affliction, healthy, flawless

Compound type : bahuvrīhi (nis+āmaya)

• nis – out, forth, away, without
  indeclinable
• āmaya – disease, illness, affliction
  noun (masculine)
  Prefix: ā
  Root: am (class 1)

केवलम् (kevalam) - only, merely, solely

(indeclinable)

Note: Used as an adverb here.

तु (tu) - but, on the other hand, indeed, however

(indeclinable)

अभिमानित्वात् (abhimānitvāt) - due to egoism, because of identification, owing to the sense of 'I' or 'mine'

(noun)

Ablative, neuter, singular of abhimānitva

abhimānitva - egoism, pride, self-conceit, identification

Derived from abhimānin with suffix -tva (abstract noun).

गुणेषु (guṇeṣu) - among the qualities, in the constituents

(noun)

Locative, masculine, plural of guṇa

guṇa - quality, attribute, constituent of nature (sattva, rajas, tamas), strand, string

अगुणः (aguṇaḥ) - without qualities, attributeless, devoid of the three guṇas

(adjective)

Nominative, masculine, singular of aguṇa

aguṇa - without qualities, attributeless, devoid of the three guṇas of prakṛti

Compound type : bahuvrīhi (a+guṇa)

• a – negation, non
  indeclinable
• guṇa – quality, constituent of nature
  noun (masculine)

उच्यते (ucyate) - is said, is called, is declared

(verb)

3rd person , singular, passive, present (laṭ) of vac

present passive

From root vac (often changes to uc in passive/reduplicated forms)

Root: vac (class 2)