महाभारतः mahābhārataḥ - book-5, chapter-8, verse-22

दुःखस्यैतस्य महतो धार्तराष्ट्रकृतस्य वै ।
अवाप्स्यसि सुखं राजन्हत्वा शत्रून्परंतप ॥२२॥

22. duḥkhasyaitasya mahato dhārtarāṣṭrakṛtasya vai ,
avāpsyasi sukhaṁ rājanhatvā śatrūnparaṁtapa.

22. duḥkhasya etasya mahataḥ dhārtarāṣṭrakṛtasya vai
avāpsyasi sukham rājan hatvā śatrūn paraṃtapa

22. O king, O tormentor of enemies (paraṃtapa), you will certainly achieve happiness by conquering your foes, thereby overcoming this great sorrow caused by the Dhārtarāṣṭras.

Words meanings summery:

• दुःखस्य (duḥkhasya) - of sorrow, of suffering

• एतस्य (etasya) - of this

• महतः (mahataḥ) - of the great

• धार्तराष्ट्रकृतस्य (dhārtarāṣṭrakṛtasya) - of that done by the sons of Dhṛtarāṣṭra

• वै (vai) - indeed, certainly, surely

• अवाप्स्यसि (avāpsyasi) - you will obtain, you will achieve

• सुखम् (sukham) - happiness, joy, comfort

• राजन् (rājan) - O king

• हत्वा (hatvā) - having killed, after killing

• शत्रून् (śatrūn) - enemies, foes

• परंतप (paraṁtapa) - O tormentor of enemies, O oppressor of foes

Words meanings and morphology

दुःखस्य (duḥkhasya) - of sorrow, of suffering

(noun)

Genitive, neuter, singular of duḥkha

duḥkha - sorrow, suffering, pain, misery

एतस्य (etasya) - of this

(pronoun)

Genitive, neuter, singular of etad

etad - this, this one

महतः (mahataḥ) - of the great

(adjective)

Genitive, neuter, singular of mahat

mahat - great, large, important, mighty

धार्तराष्ट्रकृतस्य (dhārtarāṣṭrakṛtasya) - of that done by the sons of Dhṛtarāṣṭra

(adjective)

Genitive, neuter, singular of dhārtarāṣṭrakṛta

dhārtarāṣṭrakṛta - done by Dhṛtarāṣṭra's sons, caused by the Kauravas

Compound type : tatpuruṣa (dhārtarāṣṭra+kṛta)

• dhārtarāṣṭra – son of Dhṛtarāṣṭra, belonging to Dhṛtarāṣṭra (Kaurava)
  proper noun (masculine)
  Taddhita (patronymic) from Dhṛtarāṣṭra
• kṛta – done, made, caused, accomplished
  verbal participle (neuter)
  Past Passive Participle
  Root: kṛ (class 8)

वै (vai) - indeed, certainly, surely

(indeclinable)

अवाप्स्यसि (avāpsyasi) - you will obtain, you will achieve

(verb)

2nd person , singular, active, future (lṛṭ) of ap

Prefix: ava

Root: ap (class 5)

सुखम् (sukham) - happiness, joy, comfort

(noun)

Accusative, neuter, singular of sukha

sukha - happiness, joy, comfort, pleasure

राजन् (rājan) - O king

(noun)

Vocative, masculine, singular of rājan

rājan - king, ruler, sovereign

हत्वा (hatvā) - having killed, after killing

(indeclinable verbal participle)

शत्रून् (śatrūn) - enemies, foes

(noun)

Accusative, masculine, plural of śatru

śatru - enemy, foe, adversary

परंतप (paraṁtapa) - O tormentor of enemies, O oppressor of foes

(noun)

Vocative, masculine, singular of paraṃtapa

paraṁtapa - tormentor of enemies, oppressor of foes

Compound type : aluk tatpuruṣa (param+tapa)

• param – enemy, foe, another
  noun (masculine)
• tapa – causing pain, tormenting, heating
  verbal derivative (masculine)
  Agent noun
  Derived from root tap
  Root: tap (class 1)