महाभारतः mahābhārataḥ - book-12, chapter-205, verse-6

लोहयुक्तं यथा हेम विपक्वं न विराजते ।
तथापक्वकषायाख्यं विज्ञानं न प्रकाशते ॥६॥

6. lohayuktaṁ yathā hema vipakvaṁ na virājate ,
tathāpakvakaṣāyākhyaṁ vijñānaṁ na prakāśate.

6. lohayuktam yathā hema vipakvam na virājate |
tathā apakva-kaṣāya-ākhyam vijñānam na prakāśate

6. yathā lohayuktam vipakvam hema na virājate
tathā apakva-kaṣāya-ākhyam vijñānam na prakāśate

6. Just as gold mixed with base metal, when unrefined, does not shine, similarly, knowledge (vijñāna) that is called 'unripe from impurities' does not manifest its true brilliance.

Words meanings summery:

• लोहयुक्तम् (lohayuktam) - mixed with iron, containing base metal

• यथा (yathā) - as, just as, in which way

• हेम (hema) - gold

• विपक्वम् (vipakvam) - unripe, unrefined, uncooked, immature

• न (na) - not, no, nor

• विराजते (virājate) - shines, glitters, appears splendid

• तथा (tathā) - so, thus, similarly, in that manner

• अपक्व-कषाय-आख्यम् (apakva-kaṣāya-ākhyam) - knowledge designated as having unpurified impurities (called 'unripe from impurities', named 'having unpurified stains')

• विज्ञानम् (vijñānam) - knowledge, understanding, discernment, specific knowledge (vijñāna)

• न (na) - not, no, nor

• प्रकाशते (prakāśate) - shines forth, appears, manifests, becomes clear

Words meanings and morphology

लोहयुक्तम् (lohayuktam) - mixed with iron, containing base metal

(adjective)

Nominative, neuter, singular of lohayukta

lohayukta - mixed with iron, containing base metal

Compound type : tatpuruṣa (loha+yukta)

• loha – iron, metal, copper
  noun (neuter)
• yukta – joined, connected, united, mixed, endowed with
  adjective (masculine)
  Past Passive Participle
  From root √yuj (to join, unite)
  Root: yuj (class 7)

यथा (yathā) - as, just as, in which way

(indeclinable)

हेम (hema) - gold

(noun)

Nominative, neuter, singular of heman

heman - gold, golden

विपक्वम् (vipakvam) - unripe, unrefined, uncooked, immature

(adjective)

Nominative, neuter, singular of vipakva

vipakva - unripe, unrefined, uncooked, immature

Past Passive Participle

From vi-√pac (to cook, ripen) with negative prefix 'a-' implicitly or by context of 'vi-'

Prefix: vi

Root: pac (class 1)

न (na) - not, no, nor

(indeclinable)

विराजते (virājate) - shines, glitters, appears splendid

(verb)

3rd person , singular, middle, present (lat) of vi-√rāj

Prefix: vi

Root: rāj (class 1)

तथा (tathā) - so, thus, similarly, in that manner

(indeclinable)

अपक्व-कषाय-आख्यम् (apakva-kaṣāya-ākhyam) - knowledge designated as having unpurified impurities (called 'unripe from impurities', named 'having unpurified stains')

(adjective)

Nominative, neuter, singular of apakva-kaṣāya-ākhya

apakva-kaṣāya-ākhya - called 'unripe from impurities', named 'having unpurified stains'

Compound type : bahuvrīhi (apakva-kaṣāya+ākhya)

• apakva-kaṣāya – unripe impurity, unpurified stain
  noun (masculine)
• apakva – uncooked, unripe, immature, unrefined
  adjective (masculine)
  Past Passive Participle
  From a- (not) + pakva (cooked, ripe, from √pac)
  Root: pac (class 1)
• kaṣāya – astringent, a stain, impurity, passion, defect, sin
  noun (masculine)
  From √kaṣ (to rub, test)
  Root: kaṣ (class 1)
• ākhya – named, called, denominated
  adjective (masculine)
  Gerundive/Passive suffix -ya
  From ā-√khyā (to name, tell)
  Prefix: ā
  Root: khyā (class 2)

विज्ञानम् (vijñānam) - knowledge, understanding, discernment, specific knowledge (vijñāna)

(noun)

Nominative, neuter, singular of vijñāna

vijñāna - knowledge, understanding, discernment, specific knowledge (vijñāna)

Action noun

From vi-√jñā (to know, understand)

Prefix: vi

Root: jñā (class 9)

न (na) - not, no, nor

(indeclinable)

प्रकाशते (prakāśate) - shines forth, appears, manifests, becomes clear

(verb)

3rd person , singular, middle, present (lat) of pra-√kāś

Prefix: pra

Root: kāś (class 1)