महाभारतः mahābhārataḥ - book-5, chapter-77, verse-21

सर्वथा तु मया कार्यं धर्मराजस्य शासनम् ।
विभाव्यं तस्य भूयश्च कर्म पापं दुरात्मनः ॥२१॥

21. sarvathā tu mayā kāryaṁ dharmarājasya śāsanam ,
vibhāvyaṁ tasya bhūyaśca karma pāpaṁ durātmanaḥ.

21. sarvathā tu mayā kāryam dharmarājasya śāsanam |
vibhāvyam tasya bhūyaḥ ca karma pāpam durātmanaḥ

21. However, I must certainly execute the command of the king of righteousness (dharma-rāja). Furthermore, the sinful action (karma) of that wicked person (durātman) must also be carefully considered.

Words meanings summery:

• सर्वथा (sarvathā) - certainly (in every way, by all means, certainly, absolutely)

• तु (tu) - however (but, however, indeed, on the other hand)

• मया (mayā) - by me

• कार्यम् (kāryam) - must be executed (to be done, ought to be done, task, duty)

• धर्मराजस्य (dharmarājasya) - of the king of righteousness (dharma-rāja), Yudhiṣṭhira (of the king of dharma, of the king of righteousness)

• शासनम् (śāsanam) - command (command, instruction, rule, teaching)

• विभाव्यम् (vibhāvyam) - must be carefully considered (to be considered, to be reflected upon, to be imagined)

• तस्य (tasya) - his (referring to Duryodhana implied by 'durātmanaḥ') (his, of him, of that)

• भूयः (bhūyaḥ) - again, furthermore (again, further, more, moreover)

• च (ca) - and, also

• कर्म (karma) - action (karma), deed (action, deed, work, ritual action, fate)

• पापम् (pāpam) - sinful (evil, sinful, wicked, sin)

• दुरात्मनः (durātmanaḥ) - of that wicked person (of the evil-minded one, of the wicked person)

Words meanings and morphology

सर्वथा (sarvathā) - certainly (in every way, by all means, certainly, absolutely)

(indeclinable)

formed with the suffix 'thā' (meaning 'in that manner') from 'sarva'

तु (tu) - however (but, however, indeed, on the other hand)

(indeclinable)

मया (mayā) - by me

(pronoun)

Instrumental, singular of aham

aham - I

कार्यम् (kāryam) - must be executed (to be done, ought to be done, task, duty)

(adjective)

Nominative, neuter, singular of kārya

kārya - to be done, ought to be done, duty

Gerundive

formed from root 'kṛ' (to do) with suffix '-ya'

Root: kṛ (class 8)

Note: Also functions as a noun meaning 'task' or 'duty'. Here, it's a predicate adjective agreeing with 'śāsanam'.

धर्मराजस्य (dharmarājasya) - of the king of righteousness (dharma-rāja), Yudhiṣṭhira (of the king of dharma, of the king of righteousness)

(proper noun)

Genitive, masculine, singular of dharmarāja

dharmarāja - king of righteousness, king of natural law, Yama, Yudhiṣṭhira

Compound type : tatpuruṣa (dharma+rāja)

• dharma – righteousness, duty, natural law, intrinsic nature
  noun (masculine)
  Root: dhṛ (class 1)
• rāja – king, ruler
  noun (masculine)
  Root: rāj (class 1)

Note: Refers to Yudhiṣṭhira.

शासनम् (śāsanam) - command (command, instruction, rule, teaching)

(noun)

Nominative, neuter, singular of śāsana

śāsana - command, instruction, rule, teaching

formed from root 'śās' (to command, instruct)

Root: śās (class 2)

Note: Subject of the passive construction 'kāryam'.

विभाव्यम् (vibhāvyam) - must be carefully considered (to be considered, to be reflected upon, to be imagined)

(adjective)

Nominative, neuter, singular of vibhāvya

vibhāvya - to be considered, to be reflected upon, to be imagined

Gerundive

formed from root 'bhū' (to be) with upasarga 'vi' and suffix '-ya'

Prefix: vi

Root: bhū (class 1)

Note: Predicate adjective, agreeing with 'karma'.

तस्य (tasya) - his (referring to Duryodhana implied by 'durātmanaḥ') (his, of him, of that)

(pronoun)

Genitive, masculine, singular of tad

tad - that, he, she, it

Note: Refers to the 'durātman'.

भूयः (bhūyaḥ) - again, furthermore (again, further, more, moreover)

(indeclinable)

comparative degree of 'bahu' (much), also used as an adverb

च (ca) - and, also

(indeclinable)

कर्म (karma) - action (karma), deed (action, deed, work, ritual action, fate)

(noun)

Nominative, neuter, singular of karma

karma - action, deed, work, ritual action, fate

derived from root 'kṛ' (to do)

Root: kṛ (class 8)

Note: Subject of 'vibhāvyam'.

पापम् (pāpam) - sinful (evil, sinful, wicked, sin)

(adjective)

Nominative, neuter, singular of pāpa

pāpa - evil, sinful, wicked, sin

Note: Adjective modifying 'karma'.

दुरात्मनः (durātmanaḥ) - of that wicked person (of the evil-minded one, of the wicked person)

(adjective)

Genitive, masculine, singular of durātman

durātman - wicked, evil-minded

'dur' (bad) + 'ātman' (self)

Compound type : bahuvrīhi (dur+ātman)

• dur – bad, difficult
  indeclinable
  Prefix meaning 'bad', 'evil', 'difficult'.
• ātman – self, soul, spirit, essence
  noun (masculine)
  Root: an (class 2)

Note: Qualifies an implied person, likely Duryodhana.