महाभारतः mahābhārataḥ - book-12, chapter-73, verse-8

वैश्यस्तु धनधान्येन त्रीन्वर्णान्बिभृयादिमान् ।
शूद्रो ह्येनान्परिचरेदिति ब्रह्मानुशासनम् ॥८॥

8. vaiśyastu dhanadhānyena trīnvarṇānbibhṛyādimān ,
śūdro hyenānparicarediti brahmānuśāsanam.

8. vaiśyaḥ tu dhanadhānyena trīn varṇān bibhṛyāt
imān śūdraḥ hi enān paricaret iti brahmānuśāsanam

8. tu vaiśyaḥ dhanadhānyena imān trīn varṇān bibhṛyāt
hi śūdraḥ enān paricaret iti brahmānuśāsanam

8. A Vaiśya, indeed, should maintain these three social classes (varṇas) with wealth and grain. A Śūdra, for his part, should certainly serve them. This is the command of (Brahmā).

Words meanings summery:

• वैश्यः (vaiśyaḥ) - a Vaiśya, a member of the merchant/farmer class

• तु (tu) - indeed, but, however

• धनधान्येन (dhanadhānyena) - by wealth and grain, with riches and corn

• त्रीन् (trīn) - the three higher social classes (Brahmin, Kṣatriya, and Vaiśya himself) (the three)

• वर्णान् (varṇān) - social classes, castes

• बिभृयात् (bibhṛyāt) - he should support, he should maintain

• इमान् (imān) - these aforementioned social classes (these)

• शूद्रः (śūdraḥ) - a śūdra, a member of the śūdra class

• हि (hi) - certainly, indeed, for

• एनान् (enān) - the three higher social classes (them (masculine plural))

• परिचरेत् (paricaret) - he should serve, he should attend

• इति (iti) - thus, so, in this way

• ब्रह्मानुशासनम् (brahmānuśāsanam) - the command of Brahmā, the instruction of Brahmā

Words meanings and morphology

वैश्यः (vaiśyaḥ) - a Vaiśya, a member of the merchant/farmer class

(noun)

Nominative, masculine, singular of vaiśya

vaiśya - a member of the third social class (traders, farmers, artisans)

from viś (settlement, community) + ya (taddhita suffix)

Note: Subject of 'bibhṛyāt'.

तु (tu) - indeed, but, however

(indeclinable)

Note: Emphatic or contrasting particle.

धनधान्येन (dhanadhānyena) - by wealth and grain, with riches and corn

(noun)

Instrumental, neuter, singular of dhanadhānya

dhanadhānya - wealth and grain

Compound type : dvandva (dhana+dhānya)

• dhana – wealth, riches, property
  noun (neuter)
  Root: dhan (class 1)
• dhānya – grain, corn
  noun (neuter)
  from dhā (to nourish) + ṇya
  Root: dhā (class 3)

Note: Means by which the Vaiśya maintains the other classes.

त्रीन् (trīn) - the three higher social classes (Brahmin, Kṣatriya, and Vaiśya himself) (the three)

(numeral)

Note: Agrees with 'varṇān'.

वर्णान् (varṇān) - social classes, castes

(noun)

Accusative, masculine, plural of varṇa

varṇa - color, outward appearance, social class (varṇa), caste, character, quality

Note: Object of 'bibhṛyāt'.

बिभृयात् (bibhṛyāt) - he should support, he should maintain

(verb)

3rd person , singular, active, optative (vidhiliṅ) of bhṛ

Optative, Active Voice

Optative of bhṛ (reduplicated, class 3), 3rd person singular, active voice

Root: bhṛ (class 3)

Note: Indicates prescription/duty.

इमान् (imān) - these aforementioned social classes (these)

(pronoun)

Accusative, masculine, plural of idam

idam - this, these

Note: Demonstrative pronoun, refers to the previously mentioned varṇas.

शूद्रः (śūdraḥ) - a śūdra, a member of the śūdra class

(noun)

Nominative, masculine, singular of śūdra

śūdra - a member of the fourth social class

Note: Subject of 'paricaret'.

हि (hi) - certainly, indeed, for

(indeclinable)

Note: Emphatic particle.

एनान् (enān) - the three higher social classes (them (masculine plural))

(pronoun)

Accusative, masculine, plural of ena

ena - this, that, these, those (used as a pronoun, often in older Sanskrit)

Note: Refers to the three higher varṇas.

परिचरेत् (paricaret) - he should serve, he should attend

(verb)

3rd person , singular, active, optative (vidhiliṅ) of pari-car

Optative, Active Voice

Optative of pari-car, 3rd person singular, active voice

Prefix: pari

Root: car (class 1)

Note: Indicates prescription/duty.

इति (iti) - thus, so, in this way

(indeclinable)

Note: Marks the preceding statement as a direct quote or definitive declaration.

ब्रह्मानुशासनम् (brahmānuśāsanam) - the command of Brahmā, the instruction of Brahmā

(noun)

Nominative, neuter, singular of brahmānuśāsana

brahmānuśāsana - command of Brahmā, instruction of Brahmā

Compound type : tatpuruṣa (brahman+anuśāsana)

• brahman – Brahma (the creator god), sacred utterance, ultimate reality (brahman)
  proper noun (masculine)
• anuśāsana – instruction, command, discipline, teaching
  noun (neuter)
  from anu-śās (to instruct) + ana (lyuṭ suffix)
  Prefix: anu
  Root: śās (class 2)

Note: Predicate nominative of the implied 'this is'.