महाभारतः mahābhārataḥ - book-13, chapter-110, verse-84

पूर्णेऽथ दिवसे विंशे यो भुङ्क्ते ह्येकभोजनम् ।
सदा द्वादश मासांस्तु सत्यवादी धृतव्रतः ॥८४॥

84. pūrṇe'tha divase viṁśe yo bhuṅkte hyekabhojanam ,
sadā dvādaśa māsāṁstu satyavādī dhṛtavrataḥ.

84. pūrṇe atha divase viṃśe yaḥ bhuṅkte hi ekabhojanam
sadā dvādaśa māsān tu satyavādī dhṛtavrataḥ

84. atha pūrṇe viṃśe divase yaḥ hi ekabhojanam bhuṅkte,
sadā dvādaśa māsān tu,
(saḥ) satyavādī dhṛtavrataḥ (bhavati)

84. Furthermore, when the twentieth day is complete, whoever eats only one meal, consistently for twelve months, being truthful and steadfast in his vow (vrata)...

Words meanings summery:

• पूर्णे (pūrṇe) - complete (complete, full, accomplished)

• अथ (atha) - furthermore (then, now, furthermore, moreover)

• दिवसे (divase) - on the day

• विंशे (viṁśe) - on the twentieth (day) (on the twentieth)

• यः (yaḥ) - whoever (who, whoever)

• भुङ्क्ते (bhuṅkte) - eats (eats, enjoys)

• हि (hi) - indeed (indeed, for, because)

• एकभोजनम् (ekabhojanam) - one meal (one meal, single meal)

• सदा (sadā) - consistently (always, constantly, perpetually)

• द्वादश (dvādaśa) - twelve

• मासान् (māsān) - months

• तु (tu) - (emphatic particle) (but, indeed, however, and)

• सत्यवादी (satyavādī) - truthful (truthful speaker, speaking the truth)

• धृतव्रतः (dhṛtavrataḥ) - steadfast in his vow (vrata) (one who has undertaken a vow, steadfast in a vow)

Words meanings and morphology

पूर्णे (pūrṇe) - complete (complete, full, accomplished)

(adjective)

Locative, masculine, singular of pūrṇa

pūrṇa - full, complete, fulfilled, accomplished

Past Passive Participle

from root pṛ 'to fill'

Root: pṛ (class 9)

अथ (atha) - furthermore (then, now, furthermore, moreover)

(indeclinable)

दिवसे (divase) - on the day

(noun)

Locative, masculine, singular of divasa

divasa - day

Root: div

विंशे (viṁśe) - on the twentieth (day) (on the twentieth)

(adjective)

Locative, masculine, singular of viṃśa

viṁśa - twentieth

Ordinal number from 'viṃśati' (twenty).

यः (yaḥ) - whoever (who, whoever)

(pronoun)

Nominative, masculine, singular of yad

yad - who, which, what

भुङ्क्ते (bhuṅkte) - eats (eats, enjoys)

(verb)

3rd person , singular, active, present indicative (laṭ) of bhuj

Root: bhuj (class 7)

हि (hi) - indeed (indeed, for, because)

(indeclinable)

एकभोजनम् (ekabhojanam) - one meal (one meal, single meal)

(noun)

Accusative, neuter, singular of ekabhojana

ekabhojana - a single meal

Compound type : karmadhāraya (eka+bhojana)

• eka – one, single
  numeral/adjective (neuter)
• bhojana – eating, meal, food
  noun (neuter)
  derived from root bhuj
  noun of action from bhuj + ana
  Root: bhuj (class 7)

सदा (sadā) - consistently (always, constantly, perpetually)

(indeclinable)

द्वादश (dvādaśa) - twelve

(numeral/adjective)

Compound type : dvandva (dvi+daśa)

• dvi – two
  numeral
• daśa – ten
  numeral

Note: Modifies 'māsān'.

मासान् (māsān) - months

(noun)

Accusative, masculine, plural of māsa

māsa - month

Note: Used adverbially to indicate duration.

तु (tu) - (emphatic particle) (but, indeed, however, and)

(indeclinable)

सत्यवादी (satyavādī) - truthful (truthful speaker, speaking the truth)

(adjective)

Nominative, masculine, singular of satyavādin

satyavādin - speaking the truth, truthful

from satya (truth) + vādin (speaker)

Compound type : upapada tatpuruṣa (satya+vādin)

• satya – truth, true, real
  noun/adjective (neuter)
  Root: as (class 2)
• vādin – speaking, proclaiming, one who speaks
  adjective/noun (masculine)
  Agent Noun
  from root vad- 'to speak'
  Root: vad (class 1)

धृतव्रतः (dhṛtavrataḥ) - steadfast in his vow (vrata) (one who has undertaken a vow, steadfast in a vow)

(adjective)

Nominative, masculine, singular of dhṛtavrata

dhṛtavrata - having undertaken a vow, firm in a vow, steadfast in an observance

Compound type : bahuvrīhi (dhṛta+vrata)

• dhṛta – held, borne, maintained, undertaken
  adjective (masculine)
  Past Passive Participle
  from root dhṛ 'to hold, bear'
  Root: dhṛ (class 1)
• vrata – vow, religious observance, sacred duty
  noun (neuter)