महाभारतः mahābhārataḥ - book-1, chapter-147, verse-13

अथ वाहं करिष्यामि कुलस्यास्य विमोक्षणम् ।
फलसंस्था भविष्यामि कृत्वा कर्म सुदुष्करम् ॥१३॥

13. atha vāhaṁ kariṣyāmi kulasyāsya vimokṣaṇam ,
phalasaṁsthā bhaviṣyāmi kṛtvā karma suduṣkaram.

13. atha vā aham kariṣyāmi kulasya asya vimokṣaṇam
phalasamsthā bhaviṣyāmi kṛtvā karma sudurṣkaram

13. Or else, I myself will achieve the liberation of this family. I will be steadfast in the outcome (of my actions), having performed an exceedingly difficult deed (karma).

Words meanings summery:

• अथ (atha) - now, then, moreover, or else

• वा (vā) - or, either

• अहम् (aham) - I

• करिष्यामि (kariṣyāmi) - I will do, I will perform

• कुलस्य (kulasya) - of the family, of the lineage

• अस्य (asya) - of this

• विमोक्षणम् (vimokṣaṇam) - liberation, release

• फलसंस्था (phalasaṁsthā) - established in the fruit, steadfast in the result

• भविष्यामि (bhaviṣyāmi) - I will be, I will become

• कृत्वा (kṛtvā) - having done, having performed

• कर्म (karma) - action, deed, work

• सुदुर्ष्करम् (sudurṣkaram) - exceedingly difficult to do, very hard

Words meanings and morphology

अथ (atha) - now, then, moreover, or else

(indeclinable)

वा (vā) - or, either

(indeclinable)

अहम् (aham) - I

(pronoun)

Nominative, singular of asmad

asmad - I, we

करिष्यामि (kariṣyāmi) - I will do, I will perform

(verb)

1st person , singular, active, future (lṛṭ) of kṛ

Root: kṛ (class 8)

कुलस्य (kulasya) - of the family, of the lineage

(noun)

Genitive, neuter, singular of kula

kula - family, lineage, race, community

अस्य (asya) - of this

(pronoun)

Genitive, neuter, singular of idam

idam - this

विमोक्षणम् (vimokṣaṇam) - liberation, release

(noun)

Accusative, neuter, singular of vimokṣaṇa

vimokṣaṇa - liberation, release, setting free

nominalization of causative verb

Derived from root muc (to release) with prefix vi and suffix -ana, indicating the action of releasing or causing to be released.

Prefix: vi

Root: muc (class 6)

फलसंस्था (phalasaṁsthā) - established in the fruit, steadfast in the result

(adjective)

Nominative, feminine, singular of phalasaṃsthā

phalasaṁsthā - established in the fruit (of action), steadfast in the result

Compound type : bahuvrihi (phala+saṃsthā)

• phala – fruit, result, consequence
  noun (neuter)
• saṃsthā – state, condition, establishment, standing firmly
  noun (feminine)
  Prefix: sam
  Root: sthā (class 1)

भविष्यामि (bhaviṣyāmi) - I will be, I will become

(verb)

1st person , singular, active, future (lṛṭ) of bhū

Root: bhū (class 1)

कृत्वा (kṛtvā) - having done, having performed

(indeclinable)

Absolutive (Gerund)

Absolutive form of root kṛ (to do) with suffix -tvā.

Root: kṛ (class 8)

कर्म (karma) - action, deed, work

(noun)

Accusative, neuter, singular of karma

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

nominalization of verb

Derived from root kṛ (to do) with suffix -man.

Root: kṛ (class 8)

सुदुर्ष्करम् (sudurṣkaram) - exceedingly difficult to do, very hard

(adjective)

Accusative, neuter, singular of sudurṣkara

sudurṣkara - exceedingly difficult to do, very hard, arduous

Compound type : tatpurusha (su+dus+kara)

• su – good, well, very, excellent
  indeclinable
• dus – difficult, bad, hard
  indeclinable
• kara – making, doing, performing (suffix)
  adjective (masculine)
  agent noun/suffix
  Derived from root kṛ (to do) with suffix -a.
  Root: kṛ (class 8)