महाभारतः mahābhārataḥ - book-3, chapter-259, verse-18

उपवासरतिर्धीमान्सदा जप्यपरायणः ।
तमेव कालमातिष्ठत्तीव्रं तप उदारधीः ॥१८॥

18. upavāsaratirdhīmānsadā japyaparāyaṇaḥ ,
tameva kālamātiṣṭhattīvraṁ tapa udāradhīḥ.

18. upavāsaratiḥ dhīmān sadā japyaparāyaṇaḥ tam
eva kālam ātiṣṭhat tīvram tapaḥ udāradhīḥ

18. The intelligent Vibhīṣaṇa was fond of fasting and always devoted to chanting. The noble-minded one undertook severe asceticism (tapas) for that very same period.

Words meanings summery:

• उपवासरतिः (upavāsaratiḥ) - fond of fasting, delighting in fasting

• धीमान् (dhīmān) - intelligent, wise

• सदा (sadā) - always, constantly

• जप्यपरायणः (japyaparāyaṇaḥ) - devoted to chanting, having chanting as the main pursuit

• तम् (tam) - that (masculine accusative singular)

• एव (eva) - indeed, only, very

• कालम् (kālam) - time, period, duration

• आतिष्ठत् (ātiṣṭhat) - performed, undertook, practiced

• तीव्रम् (tīvram) - severe, intense, fierce

• तपः (tapaḥ) - asceticism, penance, spiritual heat (tapas)

• उदारधीः (udāradhīḥ) - noble-minded, magnanimous

Words meanings and morphology

उपवासरतिः (upavāsaratiḥ) - fond of fasting, delighting in fasting

(adjective)

Nominative, masculine, singular of upavāsarati

upavāsarati - delight in fasting, fond of fasting

Compound type : Tatpuruṣa (upavāsa+rati)

• upavāsa – fasting, a fast
  noun (masculine)
  From root vas (to dwell) with prefix upa, or vas (to eat) with upa (fasting).
  Prefix: upa
  Root: vas (class 4)
• rati – delight, pleasure, attachment
  noun (feminine)
  From root ram (to rejoice, delight).
  Root: ram (class 1)

धीमान् (dhīmān) - intelligent, wise

(adjective)

Nominative, masculine, singular of dhīmat

dhīmat - intelligent, wise, thoughtful, sagacious

Possessive Suffix (-matup)

From dhī (intellect) + matup suffix.

सदा (sadā) - always, constantly

(indeclinable)

जप्यपरायणः (japyaparāyaṇaḥ) - devoted to chanting, having chanting as the main pursuit

(adjective)

Nominative, masculine, singular of japyaparāyaṇa

japyaparāyaṇa - whose chief object is recitation, devoted to silent prayer or chanting

Compound type : Bahuvrīhi (japya+parāyaṇa)

• japya – to be recited, fit for recitation, chanting
  gerundive (neuter)
  Gerundive
  From root jap (to mutter, whisper) with suffix -ya.
  Root: jap (class 1)
• parāyaṇa – chief object, ultimate aim, recourse, devotion, refuge
  noun (neuter)
  Prefix: parā

तम् (tam) - that (masculine accusative singular)

(pronoun)

Accusative, masculine, singular of tad

tad - that, that one, he, she, it

Note: Agrees with kālam.

एव (eva) - indeed, only, very

(indeclinable)

कालम् (kālam) - time, period, duration

(noun)

Accusative, masculine, singular of kāla

kāla - time, period, season, death

आतिष्ठत् (ātiṣṭhat) - performed, undertook, practiced

(verb)

3rd person , singular, active, Past Imperfect (laṅ) of sthā

Past Imperfect

Root sthā, Parasmaipada, 3rd person singular, augment 'a' added before the root, 'śap' infix 'a', 'ṭ' for 't' due to 'ṣ'. With prefix ā.

Prefix: ā

Root: sthā (class 1)

तीव्रम् (tīvram) - severe, intense, fierce

(adjective)

Accusative, neuter, singular of tīvra

tīvra - sharp, keen, intense, severe, fierce, vehement

Note: Agrees with tapaḥ.

तपः (tapaḥ) - asceticism, penance, spiritual heat (tapas)

(noun)

Accusative, neuter, singular of tapas

tapas - heat, warmth, penance, asceticism, spiritual austerity (tapas)

Root: tap (class 1)

उदारधीः (udāradhīḥ) - noble-minded, magnanimous

(adjective)

Nominative, masculine, singular of udāradhī

udāradhī - noble-minded, liberal, magnanimous, high-minded

Compound type : Bahuvrīhi (udāra+dhī)

• udāra – noble, generous, exalted, liberal
  adjective (masculine)
• dhī – intellect, mind, understanding
  noun (feminine)

Note: Refers to Vibhīṣaṇa.