महाभारतः mahābhārataḥ - book-13, chapter-109, verse-12

वैश्यशूद्रौ तु यौ मोहादुपवासं प्रकुर्वते ।
त्रिरात्रं द्विस्त्रिरात्रं वा तयोः पुष्टिर्न विद्यते ॥१२॥

12. vaiśyaśūdrau tu yau mohādupavāsaṁ prakurvate ,
trirātraṁ dvistrirātraṁ vā tayoḥ puṣṭirna vidyate.

12. vaiśyaśūdrau tu yau mohāt upavāsam prakurvate
trirātram dviḥ trirātram vā tayoḥ puṣṭiḥ na vidyate

12. tu yau vaiśyaśūdrau mohāt trirātram vā dviḥ
trirātram upavāsam prakurvate tayoḥ puṣṭiḥ na vidyate

12. But for those two, the vaiśya and the śūdra, who, out of delusion (moha), undertake a fast of three nights or even six nights, no benefit (puṣṭi) is found for them.

Words meanings summery:

• वैश्यशूद्रौ (vaiśyaśūdrau) - a Vaiśya and a Śūdra

• तु (tu) - but (but, indeed, however)

• यौ (yau) - who (dual)

• मोहात् (mohāt) - out of delusion (moha) (from delusion, out of ignorance)

• उपवासम् (upavāsam) - fast, fasting

• प्रकुर्वते (prakurvate) - they undertake, perform, do

• त्रिरात्रम् (trirātram) - a three-night (fast) (three nights, a period of three nights)

• द्विः (dviḥ) - twice (three nights, meaning six nights) (twice)

• त्रिरात्रम् (trirātram) - a three-night (fast) (three nights, a period of three nights)

• वा (vā) - or

• तयोः (tayoḥ) - for those two (Vaiśya and Śūdra) (for them (dual))

• पुष्टिः (puṣṭiḥ) - benefit (puṣṭi) (nourishment, growth, prosperity, benefit)

• न (na) - not, no

• विद्यते (vidyate) - is found (there is) (is, exists, is found)

Words meanings and morphology

वैश्यशूद्रौ (vaiśyaśūdrau) - a Vaiśya and a Śūdra

(noun)

Nominative, masculine, dual of vaiśyaśūdra

vaiśyaśūdra - a Vaiśya and a Śūdra (as a pair)

Compound type : dvandva (vaiśya+śūdra)

• vaiśya – member of the third social class (traders, farmers)
  noun (masculine)
• śūdra – member of the fourth social class (laborers, servants)
  noun (masculine)

तु (tu) - but (but, indeed, however)

(indeclinable)

यौ (yau) - who (dual)

(pronoun)

Nominative, masculine, dual of yad

yad - who, which, what

मोहात् (mohāt) - out of delusion (moha) (from delusion, out of ignorance)

(noun)

Ablative, masculine, singular of moha

moha - delusion, illusion, infatuation, bewilderment, ignorance (moha)

from √muh 'to be bewildered'

Root: √muh (class 4)

उपवासम् (upavāsam) - fast, fasting

(noun)

Accusative, masculine, singular of upavāsa

upavāsa - fast, fasting, abstinence from food, religious observance

from √vas with upa

Prefix: upa

Root: √vas (class 1)

प्रकुर्वते (prakurvate) - they undertake, perform, do

(verb)

3rd person , plural, middle, present (lat) of prakurv

Present

3rd person plural, Ātmanepada, root √kṛ 'to do' with prefix pra-

Prefix: pra

Root: √kṛ (class 8)

त्रिरात्रम् (trirātram) - a three-night (fast) (three nights, a period of three nights)

(noun)

Accusative, neuter, singular of trirātra

trirātra - three nights, period of three nights

Compound type : dvigu (tri+rātra)

• tri – three
  numeral
• rātra – night
  noun (neuter)

द्विः (dviḥ) - twice (three nights, meaning six nights) (twice)

(indeclinable)

त्रिरात्रम् (trirātram) - a three-night (fast) (three nights, a period of three nights)

(noun)

Accusative, neuter, singular of trirātra

trirātra - three nights, period of three nights

Compound type : dvigu (tri+rātra)

• tri – three
  numeral
• rātra – night
  noun (neuter)

Note: Here in combination with dviḥ, forming 'six nights'.

वा (vā) - or

(indeclinable)

तयोः (tayoḥ) - for those two (Vaiśya and Śūdra) (for them (dual))

(pronoun)

Genitive, masculine, dual of tad

tad - that, those, he, she, it, they

पुष्टिः (puṣṭiḥ) - benefit (puṣṭi) (nourishment, growth, prosperity, benefit)

(noun)

Nominative, feminine, singular of puṣṭi

puṣṭi - nourishment, thriving, growth, prosperity, increase, benefit (puṣṭi)

from √puṣ 'to nourish'

Root: √puṣ (class 4)

न (na) - not, no

(indeclinable)

विद्यते (vidyate) - is found (there is) (is, exists, is found)

(verb)

3rd person , singular, middle, present (lat) of vidyate

Present

3rd person singular, Ātmanepada, root √vid 'to be'

Root: √vid (class 4)