योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-16, verse-31

त्रिरात्रस्य त्रिरात्रस्य पर्यन्ते कृतपारणा ।
देवद्विजगुरुप्राज्ञविद्वत्पूजापरायणा ॥ ३१ ॥

trirātrasya trirātrasya paryante kṛtapāraṇā ,
devadvijaguruprājñavidvatpūjāparāyaṇā 31

31. tri-rātrasya tri-rātrasya paryante kṛta-pāraṇā
deva-dvija-guru-prājña-vidvat-pūjā-parāyaṇā

31. sā tri-rātrasya tri-rātrasya paryante kṛta-pāraṇā
deva-dvija-guru-prājña-vidvat-pūjā-parāyaṇā [bhavati / āsīt]

31. At the end of every three nights, she would break her fast, being solely devoted to the worship of gods, members of the twice-born (dvija) classes, spiritual teachers (guru), wise persons, and scholars.

Words meanings summery:

• त्रि-रात्रस्य (tri-rātrasya) - of three nights (a period of three nights)

• त्रि-रात्रस्य (tri-rātrasya) - of three nights (a period of three nights)

• पर्यन्ते (paryante) - at the end, at the conclusion

• कृत-पारणा (kṛta-pāraṇā) - one who has broken her fast, one who has performed the breaking of a fast

• देव-द्विज-गुरु-प्राज्ञ-विद्वत्-पूजा-परायणा (deva-dvija-guru-prājña-vidvat-pūjā-parāyaṇā) - devoted to the worship of gods, twice-born, gurus, wise persons, and scholars

Words meanings and morphology

त्रि-रात्रस्य (tri-rātrasya) - of three nights (a period of three nights)

(noun)

Genitive, neuter, singular of tri-rātra

tri-rātra - a period of three nights

Compound type : Dvigu (tri+rātra)

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

Note: Indicates a period of time, repeated.

त्रि-रात्रस्य (tri-rātrasya) - of three nights (a period of three nights)

(noun)

Genitive, neuter, singular of tri-rātra

tri-rātra - a period of three nights

Compound type : Dvigu (tri+rātra)

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

Note: Reduplication of `tri-rātrasya` emphasizes 'every'.

पर्यन्ते (paryante) - at the end, at the conclusion

(noun)

Locative, masculine, singular of paryanta

paryanta - end, limit, conclusion, extremity

Derived from `pari-` + `anta` (end).

Note: Indicates time when the action occurs.

कृत-पारणा (kṛta-pāraṇā) - one who has broken her fast, one who has performed the breaking of a fast

(adjective)

Nominative, feminine, singular of kṛta-pāraṇā

kṛta-pāraṇā - having performed the breaking of a fast

Compound type : Bahuvrīhi (kṛta+pāraṇā)

• kṛta – done, made, performed
  participle (neuter)
  Past Passive Participle
  From root `kṛ` (to do, make) + suffix `kta`.
  Root: kṛ (class 8)
• pāraṇā – breaking a fast, eating after a fast, fulfilling a vow
  noun (feminine)
  Derived from root `pṛ` (to fill, satisfy) or `par` (to cross over).
  Root: pṛ (class 3)

Note: Predicate adjective describing the lady (implied `sā`).

देव-द्विज-गुरु-प्राज्ञ-विद्वत्-पूजा-परायणा (deva-dvija-guru-prājña-vidvat-pūjā-parāyaṇā) - devoted to the worship of gods, twice-born, gurus, wise persons, and scholars

(adjective)

Nominative, feminine, singular of deva-dvija-guru-prājña-vidvat-pūjā-parāyaṇā

deva-dvija-guru-prājña-vidvat-pūjā-parāyaṇā - one who is wholly devoted to the worship of gods, Brahmins/twice-born, spiritual teachers, wise individuals, and scholars.

Compound type : Bahuvrīhi (deva+dvija+guru+prājña+vidvat+pūjā+parāyaṇa)

• deva – god, deity
  noun (masculine)
  Root: div (class 4)
• dvija – twice-born (Brāhmin, Kṣatriya, Vaiśya), bird, tooth
  noun (masculine)
  Compound `dvi` (twice) + `ja` (born).
  Root: jan (class 4)
• guru – spiritual teacher (guru), preceptor, heavy, important
  noun (masculine)
• prājña – wise, learned, intelligent person
  noun (masculine)
  From `prajñā` (wisdom).
  Prefix: pra
  Root: jñā (class 9)
• vidvat – learned person, scholar
  participle (masculine)
  Present Active Participle (from √vid)
  From root `vid` (to know).
  Root: vid (class 2)
• pūjā – worship, adoration, honor
  noun (feminine)
  From root `pūj` (to worship).
  Root: pūj (class 10)
• parāyaṇa – devoted to, intent on, supreme resort
  adjective (feminine)
  Derived from `para` (supreme) + `ayana` (going, path).

Note: Predicate adjective describing the lady (implied `sā`).