महाभारतः mahābhārataḥ - book-3, chapter-168, verse-27

पुनः प्रकाशमभवत्तमसा ग्रस्यते पुनः ।
व्रजत्यदर्शनं लोकः पुनरप्सु निमज्जति ॥२७॥

27. punaḥ prakāśamabhavattamasā grasyate punaḥ ,
vrajatyadarśanaṁ lokaḥ punarapsu nimajjati.

27. punar prakāśam abhavat tamasā grasyate punar
vrajati adarśanam lokaḥ punar apsu nimajjati

27. Again, there was light, then it was again engulfed by darkness. The world vanishes from sight, and again it sinks into the waters.

Words meanings summery:

• पुनर् (punar) - again, once more

• प्रकाशम् (prakāśam) - light, brightness, manifestation

• अभवत् (abhavat) - it became, it was, it happened

• तमसा (tamasā) - by darkness, with darkness

• ग्रस्यते (grasyate) - it is swallowed, it is devoured, it is consumed

• पुनर् (punar) - again, once more

• व्रजति (vrajati) - goes, proceeds, moves, travels

• अदर्शनम् (adarśanam) - disappearance, invisibility, unseen state

• लोकः (lokaḥ) - the world, realm, people

• पुनर् (punar) - again, once more

• अप्सु (apsu) - in the waters

• निमज्जति (nimajjati) - sinks, submerges, dips

Words meanings and morphology

पुनर् (punar) - again, once more

(indeclinable)

प्रकाशम् (prakāśam) - light, brightness, manifestation

(noun)

Accusative, masculine, singular of prakāśa

prakāśa - light, brightness, splendor, manifestation, appearance

Root: kāś (class 1)

अभवत् (abhavat) - it became, it was, it happened

(verb)

3rd person , singular, active, Past Imperfect (laṅ) of √bhū

Root: bhū (class 1)

तमसा (tamasā) - by darkness, with darkness

(noun)

Instrumental, neuter, singular of tamas

tamas - darkness, gloom, ignorance, quality of inertia (tamas)

ग्रस्यते (grasyate) - it is swallowed, it is devoured, it is consumed

(verb)

3rd person , singular, passive, Present (laṭ) of √gras

Root: gras (class 1)

पुनर् (punar) - again, once more

(indeclinable)

व्रजति (vrajati) - goes, proceeds, moves, travels

(verb)

3rd person , singular, active, Present (laṭ) of √vraj

Root: vraj (class 1)

अदर्शनम् (adarśanam) - disappearance, invisibility, unseen state

(noun)

Accusative, neuter, singular of adarśana

adarśana - not seeing, invisibility, disappearance, absence of sight

Compound type : tatpurusha (a+darśana)

• a – not, un-, in- (negating prefix)
  indeclinable
• darśana – seeing, sight, vision, appearance
  noun (neuter)
  Derived from √dṛś (to see) with the suffix -ana.
  Root: dṛś (class 1)

लोकः (lokaḥ) - the world, realm, people

(noun)

Nominative, masculine, singular of loka

loka - world, realm, people, mankind

पुनर् (punar) - again, once more

(indeclinable)

अप्सु (apsu) - in the waters

(noun)

Locative, feminine, plural of ap

ap - water, waters (always plural in Sanskrit)

निमज्जति (nimajjati) - sinks, submerges, dips

(verb)

3rd person , singular, active, Present (laṭ) of √majj

Prefix: ni

Root: majj (class 6)