महाभारतः mahābhārataḥ - book-2, chapter-50, verse-21

द्वावेतौ ग्रसते भूमिः सर्पो बिलशयानिव ।
राजानं चाविरोद्धारं ब्राह्मणं चाप्रवासिनम् ॥२१॥

21. dvāvetau grasate bhūmiḥ sarpo bilaśayāniva ,
rājānaṁ cāviroddhāraṁ brāhmaṇaṁ cāpravāsinam.

21. dvau etau grasate bhūmiḥ sarpaḥ bilaśayān iva
rājānam ca aviroddhāram brāhmaṇam ca aprāvāsinam

21. The realm (bhūmi) swallows up these two, just as a serpent devours creatures living in burrows: a king who does not resist (his enemies), and a brahmin who does not travel (seeking knowledge or livelihood).

Words meanings summery:

• द्वौ (dvau) - two

• एतौ (etau) - these (two)

• ग्रसते (grasate) - devours, swallows

• भूमिः (bhūmiḥ) - the earth, land, realm

• सर्पः (sarpaḥ) - a serpent, snake

• बिलशयान् (bilaśayān) - those lying in holes, dwellers of burrows

• इव (iva) - like, as, as if

• राजानम् (rājānam) - a king

• च (ca) - and

• अविरोद्धारम् (aviroddhāram) - one who does not resist, non-antagonistic

• ब्राह्मणम् (brāhmaṇam) - a brahmin

• च (ca) - and

• अप्रावासिनम् (aprāvāsinam) - a brahmin who stays in one place without seeking knowledge or livelihood elsewhere (one who does not travel, a non-traveler)

Words meanings and morphology

द्वौ (dvau) - two

(numeral)

एतौ (etau) - these (two)

(pronoun)

Nominative, masculine, dual of etad

etad - this, these

ग्रसते (grasate) - devours, swallows

(verb)

3rd person , singular, middle, present indicative (laṭ) of gras

Root: gras (class 1)

भूमिः (bhūmiḥ) - the earth, land, realm

(noun)

Nominative, feminine, singular of bhūmi

bhūmi - earth, land, soil, ground, realm

सर्पः (sarpaḥ) - a serpent, snake

(noun)

Nominative, masculine, singular of sarpa

sarpa - serpent, snake

बिलशयान् (bilaśayān) - those lying in holes, dwellers of burrows

(noun)

Accusative, masculine, plural of bilaśaya

bilaśaya - dwelling in a hole/burrow

Compound type : tatpuruṣa (bila+śaya)

• bila – hole, burrow, cave
  noun (neuter)
• śaya – lying, sleeping, dwelling
  noun (masculine)
  agent noun/derivative
  Derived from root śī (to lie, sleep)
  Root: śī (class 2)

इव (iva) - like, as, as if

(indeclinable)

राजानम् (rājānam) - a king

(noun)

Accusative, masculine, singular of rājan

rājan - king, ruler

च (ca) - and

(indeclinable)

अविरोद्धारम् (aviroddhāram) - one who does not resist, non-antagonistic

(noun)

Accusative, masculine, singular of aviroddhṛ

aviroddhṛ - non-resisting, not hostile, non-opponent

Compound type : nañ-tatpuruṣa (a+viroddhṛ)

• a – not, non-
  indeclinable
• viroddhṛ – an opponent, one who resists
  noun (masculine)
  agent noun
  Derived from verb vi-rudh (to obstruct, oppose)
  Prefix: vi
  Root: rudh (class 7)

ब्राह्मणम् (brāhmaṇam) - a brahmin

(noun)

Accusative, masculine, singular of brāhmaṇa

brāhmaṇa - brahmin, a member of the priestly class

च (ca) - and

(indeclinable)

अप्रावासिनम् (aprāvāsinam) - a brahmin who stays in one place without seeking knowledge or livelihood elsewhere (one who does not travel, a non-traveler)

(noun)

Accusative, masculine, singular of aprāvāsin

aprāvāsin - not moving, not emigrating, not traveling

Compound type : nañ-tatpuruṣa (a+prāvāsin)

• a – not, non-
  indeclinable
• prāvāsin – a traveler, one who moves/emigrates, a sojourner
  noun (masculine)
  agent noun
  Derived from verb pra-vas (to go abroad, dwell away)
  Prefix: pra
  Root: vas (class 1)