महाभारतः mahābhārataḥ - book-12, chapter-309, verse-20

क्रमशः संचितशिखो धर्मबुद्धिमयो महान् ।
अन्धकारे प्रवेष्टव्ये दीपो यत्नेन धार्यताम् ॥२०॥

20. kramaśaḥ saṁcitaśikho dharmabuddhimayo mahān ,
andhakāre praveṣṭavye dīpo yatnena dhāryatām.

20. kramaśaḥ sañcitaśikhaḥ dharmabuddhimayaḥ mahān
andhakāre praveṣṭavye dīpaḥ yatnena dhāryatām

20. andhakāre praveṣṭavye,
kramaśaḥ sañcitaśikhaḥ dharmabuddhimayaḥ mahān dīpaḥ yatnena dhāryatām

20. Let the great lamp, whose light is gradually accumulated and which consists of the wisdom of natural law (dharma), be carefully held and maintained when one must enter into darkness.

Words meanings summery:

• क्रमशः (kramaśaḥ) - gradually (gradually, in succession, in order)

• सञ्चितशिखः (sañcitaśikhaḥ) - one whose light/flames are gradually accumulated (i.e., growing) (one whose peak/flame is accumulated/gathered)

• धर्मबुद्धिमयः (dharmabuddhimayaḥ) - embodying the wisdom of natural law (dharma) (consisting of the intellect of natural law)

• महान् (mahān) - great (great, large, mighty)

• अन्धकारे (andhakāre) - in darkness (literal or metaphorical for ignorance/difficulty) (in darkness)

• प्रवेष्टव्ये (praveṣṭavye) - when one must enter (into darkness) (in that which is to be entered, when one should enter)

• दीपः (dīpaḥ) - a lamp (metaphorical for wisdom) (a lamp, light)

• यत्नेन (yatnena) - with effort, diligently, carefully (with effort, diligently)

• धार्यताम् (dhāryatām) - let it be held/maintained

Words meanings and morphology

क्रमशः (kramaśaḥ) - gradually (gradually, in succession, in order)

(indeclinable)

From `krama` (order, series) with the `śas` suffix (meaning "by way of", "in the manner of").

सञ्चितशिखः (sañcitaśikhaḥ) - one whose light/flames are gradually accumulated (i.e., growing) (one whose peak/flame is accumulated/gathered)

(adjective)

Nominative, masculine, singular of sañcitaśikha

sañcitaśikha - having accumulated peaks/flames/rays

`sañcita` (accumulated) + `śikha` (flame, peak, light).

Compound type : bahuvrīhi (sañcita+śikha)

• sañcita – accumulated, collected, gathered
  adjective (masculine)
  Past Passive Participle
  `sam-√ci` (to gather, collect) + `kta` (PPP)
  Prefix: sam
  Root: ci (class 5)
• śikha – flame, peak, crest, ray of light
  noun (masculine)

धर्मबुद्धिमयः (dharmabuddhimayaḥ) - embodying the wisdom of natural law (dharma) (consisting of the intellect of natural law)

(adjective)

Nominative, masculine, singular of dharmabuddhimaya

dharmabuddhimaya - consisting of or full of the intellect of natural law (dharma)

`dharma` (natural law) + `buddhi` (intellect) + `maya` (made of, consisting of).

Compound type : tatpuruṣa (dharma+buddhi+maya)

• dharma – natural law, constitution, duty, righteousness
  noun (masculine)
  Root: dhṛ (class 1)
• buddhi – intellect, understanding, wisdom
  noun (feminine)
  From `√budh` (to awaken, know).
  Root: budh (class 1)
• maya – made of, consisting of, full of, pertaining to
  suffix/adjective (masculine)
  `mayaṭ` suffix

महान् (mahān) - great (great, large, mighty)

(adjective)

Nominative, masculine, singular of mahat

mahat - great, large, mighty, considerable

From `√mah` (to be great).

Root: mah (class 1)

अन्धकारे (andhakāre) - in darkness (literal or metaphorical for ignorance/difficulty) (in darkness)

(noun)

Locative, masculine, singular of andhakāra

andhakāra - darkness, gloom

`andha` (blind, dark) + `kāra` (maker, causing).

Compound type : tatpuruṣa (andha+kāra)

• andha – blind, dark
  adjective (masculine)
• kāra – maker, doing, causing
  noun (masculine)
  From `√kṛ` (to do, make).
  Root: kṛ (class 8)

प्रवेष्टव्ये (praveṣṭavye) - when one must enter (into darkness) (in that which is to be entered, when one should enter)

(adjective)

Locative, masculine, singular of praveṣṭavya

praveṣṭavya - to be entered, fit to be entered

Gerundive

From `pra-√viś` (to enter) with `tavya` (gerundive affix).

Prefix: pra

Root: viś (class 6)

दीपः (dīpaḥ) - a lamp (metaphorical for wisdom) (a lamp, light)

(noun)

Nominative, masculine, singular of dīpa

dīpa - lamp, light, lantern

From `√dīp` (to shine, blaze).

Root: dīp (class 4)

यत्नेन (yatnena) - with effort, diligently, carefully (with effort, diligently)

(noun)

Instrumental, masculine, singular of yatna

yatna - effort, exertion, endeavor, care

From `√yat` (to endeavor, strive).

Root: yat (class 1)

धार्यताम् (dhāryatām) - let it be held/maintained

(verb)

3rd person , singular, passive, imperative (loṭ) of dhṛ

Passive imperative

`dhṛ` (root) + `ya` (passive sign) + `tām` (3rd person singular imperative ending).

Root: dhṛ (class 1)