महाभारतः mahābhārataḥ - book-13, chapter-110, verse-51

दिवसे द्वादशे यस्तु प्राप्ते वै प्राशते हविः ।
सदा द्वादशमासान्वै सर्वमेधफलं लभेत् ॥५१॥

51. divase dvādaśe yastu prāpte vai prāśate haviḥ ,
sadā dvādaśamāsānvai sarvamedhaphalaṁ labhet.

51. divase dvādaśe yaḥ tu prāpte vai prāśate haviḥ
sadā dvādaśamāsān vai sarvamedhaphalam labhet

51. yaḥ tu divase dvādaśe prāpte vai haviḥ prāśate
sadā dvādaśamāsān vai sarvamedhaphalam labhet

51. Whoever indeed partakes of the oblation on the twelfth day when it arrives, he would always obtain the fruit of the Sarvamedha (Vedic ritual) for twelve months.

Words meanings summery:

• दिवसे (divase) - on the day

• द्वादशे (dvādaśe) - on the twelfth

• यः (yaḥ) - whoever (who, whoever)

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

• प्राप्ते (prāpte) - when it arrives (referring to the day) (when it has arrived, having arrived, obtained)

• वै (vai) - indeed (indeed, verily, surely)

• प्राशते (prāśate) - partakes of (eats, tastes, partakes of)

• हविः (haviḥ) - oblation (oblation, offering, ghee)

• सदा (sadā) - always (always, ever, perpetually)

• द्वादशमासान् (dvādaśamāsān) - for twelve months

• वै (vai) - indeed (indeed, verily, surely)

• सर्वमेधफलम् (sarvamedhaphalam) - the fruit of the Sarvamedha (Vedic ritual) (the fruit/result of the Sarvamedha (a specific Vedic ritual))

• लभेत् (labhet) - would obtain (would obtain, might gain, should receive)

Words meanings and morphology

दिवसे (divase) - on the day

(noun)

Locative, masculine, singular of divasa

divasa - day

द्वादशे (dvādaśe) - on the twelfth

(adjective)

Locative, masculine, singular of dvādaśa

dvādaśa - twelve, twelfth

Note: Ordinal numeral, agreeing with 'divase'.

यः (yaḥ) - whoever (who, whoever)

(pronoun)

Nominative, masculine, singular of yad

yad - which, who, what, that

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

(indeclinable)

प्राप्ते (prāpte) - when it arrives (referring to the day) (when it has arrived, having arrived, obtained)

(adjective)

Locative, masculine, singular of prāpta

prāpta - obtained, gained, reached, arrived

Past Passive Participle

Derived from √āp (to obtain) with prefix pra-. Used in a locative absolute construction.

Prefix: pra

Root: āp (class 5)

Note: Agrees with 'divase dvādaśe' in a locative absolute construction.

वै (vai) - indeed (indeed, verily, surely)

(indeclinable)

प्राशते (prāśate) - partakes of (eats, tastes, partakes of)

(verb)

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

Root with prefix pra-.

Prefix: pra

Root: aś (class 9)

हविः (haviḥ) - oblation (oblation, offering, ghee)

(noun)

Accusative, neuter, singular of havis

havis - oblation, offering, clarified butter

सदा (sadā) - always (always, ever, perpetually)

(indeclinable)

द्वादशमासान् (dvādaśamāsān) - for twelve months

(noun)

Accusative, masculine, plural of dvādaśamāsa

dvādaśamāsa - twelve months

Compound type : karmadhāraya (dvādaśa+māsa)

• dvādaśa – twelve
  numeral
• māsa – month, moon
  noun (masculine)

Note: Accusative case indicates duration ('for twelve months').

वै (vai) - indeed (indeed, verily, surely)

(indeclinable)

सर्वमेधफलम् (sarvamedhaphalam) - the fruit of the Sarvamedha (Vedic ritual) (the fruit/result of the Sarvamedha (a specific Vedic ritual))

(noun)

Accusative, neuter, singular of sarvamedhaphala

sarvamedhaphala - the fruit or result of the Sarvamedha (a grand Vedic ritual)

Compound type : tatpuruṣa (sarvamedha+phala)

• sarvamedha – Sarvamedha (a great Vedic ritual where everything is offered)
  proper noun (masculine)
• phala – fruit, result, consequence, reward
  noun (neuter)

लभेत् (labhet) - would obtain (would obtain, might gain, should receive)

(verb)

3rd person , singular, active, optative (vidhi-liṅ) of labh

Root: labh (class 1)