महाभारतः mahābhārataḥ - book-12, chapter-293, verse-50

निस्तत्त्वं पञ्चविंशस्य परमाहुर्निदर्शनम् ।
वर्गस्य वर्गमाचारं तत्त्वं तत्त्वात्सनातनम् ॥५०॥

50. nistattvaṁ pañcaviṁśasya paramāhurnidarśanam ,
vargasya vargamācāraṁ tattvaṁ tattvātsanātanam.

50. nistattvam pañcaviṃśasya param āhuḥ nidarśanam |
vargasya vargam ācāram tattvam tattvāt sanātanam

50. pañcaviṃśasya nistattvam param nidarśanam āhuḥ
vargasya vargam ācāram tattvam tattvāt sanātanam

50. They declare non-reality (nistattva) to be the supreme illustration for the twenty-fifth (puruṣa). The ultimate reality (tattva), which is the inherent order (ācāra) of categories (varga) by category, is eternal, distinct from (other) principles (tattva).

Words meanings summery:

• निस्तत्त्वम् (nistattvam) - referring to Puruṣa in Sāṅkhya, as distinct from Prakṛti's evolutes (non-reality, that which is not a principle)

• पञ्चविंशस्य (pañcaviṁśasya) - referring to the twenty-fifth principle, Puruṣa, in Sāṅkhya philosophy (of the twenty-fifth)

• परम् (param) - supreme, highest, ultimate

• आहुः (āhuḥ) - they say, they declare

• निदर्शनम् (nidarśanam) - explanation, illustration, example

• वर्गस्य (vargasya) - of a category (of Sāṅkhya tattvas) (of the class, of the group)

• वर्गम् (vargam) - a category (of Sāṅkhya tattvas), often used distributively or emphatically with genitive 'vargasya' (a class, a group)

• आचारम् (ācāram) - the inherent order or natural law (conduct, custom, established order, nature, intrinsic behavior)

• तत्त्वम् (tattvam) - the ultimate reality, Puruṣa, the self-existent principle (reality, principle, truth)

• तत्त्वात् (tattvāt) - from other principles (e.g., from Prakṛti's evolutes) (from the principle, from reality)

• सनातनम् (sanātanam) - eternal, perpetual, ancient

Words meanings and morphology

निस्तत्त्वम् (nistattvam) - referring to Puruṣa in Sāṅkhya, as distinct from Prakṛti's evolutes (non-reality, that which is not a principle)

(noun)

Nominative, neuter, singular of nistattva

nistattva - non-reality, that which is not a principle

Compound type : nañ-tatpuruṣa (nis+tattva)

• nis – without, out of, not
  indeclinable
  Prefix indicating negation or absence.
• tattva – reality, truth, principle, essence
  noun (neuter)

पञ्चविंशस्य (pañcaviṁśasya) - referring to the twenty-fifth principle, Puruṣa, in Sāṅkhya philosophy (of the twenty-fifth)

(adjective)

Genitive, masculine, singular of pañcaviṃśa

pañcaviṁśa - twenty-fifth

परम् (param) - supreme, highest, ultimate

(adjective)

Nominative, neuter, singular of para

para - supreme, highest, ultimate, other

आहुः (āhuḥ) - they say, they declare

(verb)

3rd person , plural, active, present indicative (laṭ) of ah

Root form pra-ah (present active 3rd plural).

Root: ah (class 2)

निदर्शनम् (nidarśanam) - explanation, illustration, example

(noun)

Nominative, neuter, singular of nidarśana

nidarśana - explanation, illustration, showing, demonstrating

Prefix: ni

Root: dṛś

वर्गस्य (vargasya) - of a category (of Sāṅkhya tattvas) (of the class, of the group)

(noun)

Genitive, masculine, singular of varga

varga - class, group, category, division

वर्गम् (vargam) - a category (of Sāṅkhya tattvas), often used distributively or emphatically with genitive 'vargasya' (a class, a group)

(noun)

Accusative, masculine, singular of varga

varga - class, group, category, division

आचारम् (ācāram) - the inherent order or natural law (conduct, custom, established order, nature, intrinsic behavior)

(noun)

Accusative, masculine, singular of ācāra

ācāra - conduct, custom, practice, established usage, intrinsic nature

From root car with prefix ā.

Prefix: ā

Root: car

तत्त्वम् (tattvam) - the ultimate reality, Puruṣa, the self-existent principle (reality, principle, truth)

(noun)

Nominative, neuter, singular of tattva

tattva - reality, truth, principle, essence, element

तत्त्वात् (tattvāt) - from other principles (e.g., from Prakṛti's evolutes) (from the principle, from reality)

(noun)

Ablative, neuter, singular of tattva

tattva - reality, truth, principle, essence, element

सनातनम् (sanātanam) - eternal, perpetual, ancient

(adjective)

Nominative, neuter, singular of sanātana

sanātana - eternal, perpetual, ancient, primeval