महाभारतः mahābhārataḥ - book-3, chapter-246, verse-21

तथा तमुञ्छधर्माणं दुर्वासा मुनिसत्तमम् ।
उपतस्थे यथाकालं षट्कृत्वः कृतनिश्चयः ॥२१॥

21. tathā tamuñchadharmāṇaṁ durvāsā munisattamam ,
upatasthe yathākālaṁ ṣaṭkṛtvaḥ kṛtaniścayaḥ.

21. tathā tam uñcha-dharmāṇam durvāsāḥ muni-sattamam
| upatasthe yathā-kālam ṣaṭ-kṛtvaḥ kṛta-niścayaḥ

21. With firm resolve, the sage (muni) Durvasa thus approached that best among sages (muni-sattamam) who practiced the natural law (dharma) of gleaning, doing so six times at the proper moment.

Words meanings summery:

• तथा (tathā) - thus, so, in that manner

• तम् (tam) - him, that

• उञ्छ-धर्माणम् (uñcha-dharmāṇam) - who has the natural law (dharma) of gleaning

• दुर्वासाः (durvāsāḥ) - The sage Durvasa (Durvasa (a proper name))

• मुनि-सत्तमम् (muni-sattamam) - the best among sages

• उपतस्थे (upatasthe) - approached, stood near, attended

• यथा-कालम् (yathā-kālam) - at the proper time, opportunely

• षट्-कृत्वः (ṣaṭ-kṛtvaḥ) - six times

• कृत-निश्चयः (kṛta-niścayaḥ) - having made a firm resolve, with firm determination

Words meanings and morphology

तथा (tathā) - thus, so, in that manner

(indeclinable)

तम् (tam) - him, that

(pronoun)

Accusative, masculine, singular of tad

tad - that, he, she, it

Note: Refers to Mudgala.

उञ्छ-धर्माणम् (uñcha-dharmāṇam) - who has the natural law (dharma) of gleaning

(adjective)

Accusative, masculine, singular of uñcha-dharman

uñcha-dharman - one whose practice or natural law (dharma) is gleaning

Compound type : bahuvrihi (uñcha+dharman)

• uñcha – gleaning, collection of scattered grains
  noun (masculine)
  From root UÑCH (to glean)
  Root: uñch (class 6)
• dharman – natural law (dharma), righteousness, duty, custom
  noun (masculine)
  From root DHṚ (to hold, support)
  Root: dhṛ (class 1)

Note: Modifies 'muni-sattamam' and 'tam'.

दुर्वासाः (durvāsāḥ) - The sage Durvasa (Durvasa (a proper name))

(proper noun)

Nominative, masculine, singular of durvāsas

durvāsas - Durvasa (name of a sage)

Note: The subject of the verb 'upatasthe'.

मुनि-सत्तमम् (muni-sattamam) - the best among sages

(noun)

Accusative, masculine, singular of muni-sattama

muni-sattama - best of sages, excellent sage

Compound type : tatpurusha (muni+sattama)

• muni – sage, ascetic, hermit
  noun (masculine)
  Root: man (class 4)
• sattama – best, most excellent
  adjective
  Superlative of 'sat'

Note: Refers to Mudgala.

उपतस्थे (upatasthe) - approached, stood near, attended

(verb)

3rd person , singular, middle, perfect (liṭ) of upasthā

Perfect tense

From upa + STHĀ (to stand)

Prefix: upa

Root: sthā (class 1)

Note: The verb of the sentence, subject is 'durvāsāḥ'.

यथा-कालम् (yathā-kālam) - at the proper time, opportunely

(indeclinable)

Avyayībhāva compound

Compound type : avyayībhāva (yathā+kāla)

• yathā – as, just as, according to
  indeclinable
• kāla – time, season
  noun (masculine)

Note: Adverbial usage.

षट्-कृत्वः (ṣaṭ-kṛtvaḥ) - six times

(indeclinable)

Formed with the suffix -kṛtvas from ṣaṣ (six)

Note: Adverb of frequency.

कृत-निश्चयः (kṛta-niścayaḥ) - having made a firm resolve, with firm determination

(adjective)

Nominative, masculine, singular of kṛta-niścaya

kṛta-niścaya - one whose resolve is made, having formed a firm decision, determined

Compound type : bahuvrihi (kṛta+niścaya)

• kṛta – done, made
  adjective
  Past Passive Participle
  From root KṚ (to do, make)
  Root: kṛ (class 8)
• niścaya – firm resolve, certainty, decision
  noun (masculine)
  From ni + CI (to ascertain)
  Prefix: ni
  Root: ci (class 5)

Note: Refers to 'durvāsāḥ'.