महाभारतः mahābhārataḥ - book-13, chapter-78, verse-19

समानवत्सां गौरीं तु धेनुं दत्त्वा पयस्विनीम् ।
सुव्रतां वस्त्रसंवीतां वसूनां लोकमश्नुते ॥१९॥

19. samānavatsāṁ gaurīṁ tu dhenuṁ dattvā payasvinīm ,
suvratāṁ vastrasaṁvītāṁ vasūnāṁ lokamaśnute.

19. samānavatsām gaurīm tu dhenum dattvā payasvinīm
su-vratām vastra-saṃvītām vasūnām lokam aśnute

19. samānavatsām gaurīm payasvinīm su-vratām vastra-saṃvītām
dhenum tu dattvā (janaḥ) vasūnām lokam aśnute

19. By donating a white, milky cow along with its calf, which is well-behaved and adorned with cloth, one attains the world of the Vasus.

Words meanings summery:

• समानवत्साम् (samānavatsām) - (a cow) along with its calf (with a similar calf, with its calf)

• गौरीम् (gaurīm) - (a cow that is) white (white, yellowish-white, brilliant)

• तु (tu) - (for emphasis) (but, indeed, on the other hand)

• धेनुम् (dhenum) - cow (cow, milch cow)

• दत्त्वा (dattvā) - by donating (having given)

• पयस्विनीम् (payasvinīm) - (a cow that is) milky, yielding much milk (full of milk, milky, yielding much milk)

• सु-व्रताम् (su-vratām) - (a cow that is) well-behaved or of good characteristics (of good observances, pious, well-behaved, healthy)

• वस्त्रसंवीताम् (vastrasaṁvītām) - (a cow that is) adorned with cloth (covered with cloth, adorned with cloth)

• वसूनाम् (vasūnām) - of the Vasus (of the Vasus (a class of deities))

• लोकम् (lokam) - world, abode (world, realm, abode, people)

• अश्नुते (aśnute) - attains (attains, reaches, obtains, enjoys)

Words meanings and morphology

समानवत्साम् (samānavatsām) - (a cow) along with its calf (with a similar calf, with its calf)

(adjective)

Accusative, feminine, singular of samānavatsa

samānavatsa - having a calf of the same age/kind, with its calf

compound of samāna (similar, same) and vatsa (calf)

Compound type : bahuvrīhi (samāna+vatsa)

• samāna – similar, same, equal
  adjective
• vatsa – calf
  noun (masculine)

Note: Modifies dhenum.

गौरीम् (gaurīm) - (a cow that is) white (white, yellowish-white, brilliant)

(adjective)

Accusative, feminine, singular of gaurī

gaurī - white, yellowish-white, brilliant; a white cow

feminine of gaura

Note: Modifies dhenum.

तु (tu) - (for emphasis) (but, indeed, on the other hand)

(indeclinable)

धेनुम् (dhenum) - cow (cow, milch cow)

(noun)

Accusative, feminine, singular of dhenu

dhenu - cow, milch cow

Root: dhā (class 1)

Note: Object of dattvā.

दत्त्वा (dattvā) - by donating (having given)

(indeclinable)

absolutive (gerund)

formed from root dā with suffix -tvā

Root: dā (class 3)

पयस्विनीम् (payasvinīm) - (a cow that is) milky, yielding much milk (full of milk, milky, yielding much milk)

(adjective)

Accusative, feminine, singular of payasvinī

payasvinī - full of milk, milky, yielding much milk (feminine of payasvin)

feminine form, from payas (milk) + -vin (possessive suffix)

Note: Modifies dhenum.

सु-व्रताम् (su-vratām) - (a cow that is) well-behaved or of good characteristics (of good observances, pious, well-behaved, healthy)

(adjective)

Accusative, feminine, singular of suvrata

suvrata - of good observances, pious, virtuous, well-behaved, healthy

compound of su (good) and vrata (observance, vow, rule)

Compound type : bahuvrīhi (su+vrata)

• su – good, well, excellent
  indeclinable
  prefix
• vrata – vow, observance, rule, conduct
  noun (neuter)

Note: Modifies dhenum.

वस्त्रसंवीताम् (vastrasaṁvītām) - (a cow that is) adorned with cloth (covered with cloth, adorned with cloth)

(adjective)

Accusative, feminine, singular of vastrasaṃvītā

vastrasaṁvītā - covered with cloth, adorned with cloth (feminine of vastrasaṃvīta)

past passive participle in compound

compound of vastra (cloth) and saṃvīta (covered)

Compound type : tatpuruṣa (vastra+saṃvīta)

• vastra – cloth, garment
  noun (neuter)
• saṃvīta – covered, enveloped, wrapped
  adjective
  past passive participle
  from verb saṃ-vī (to cover)
  Prefix: sam
  Root: vī (class 1)

Note: Modifies dhenum.

वसूनाम् (vasūnām) - of the Vasus (of the Vasus (a class of deities))

(proper noun)

Genitive, masculine, plural of vasu

vasu - a class of deities, wealth, good

Note: Possessive, related to lokam.

लोकम् (lokam) - world, abode (world, realm, abode, people)

(noun)

Accusative, masculine, singular of loka

loka - world, realm, abode, people, space

Root: lok (class 1)

Note: Object of aśnute.

अश्नुते (aśnute) - attains (attains, reaches, obtains, enjoys)

(verb)

3rd person , singular, middle, present (laṭ) of aś

present active

middle voice form

Root: aś (class 5)

Note: The subject 'one' (janaḥ) is implied.