महाभारतः mahābhārataḥ - book-13, chapter-14, verse-138

त्रिःसप्तकृत्वः पृथिवी येन निःक्षत्रिया कृता ।
जामदग्न्येन गोविन्द रामेणाक्लिष्टकर्मणा ॥१३८॥

138. triḥsaptakṛtvaḥ pṛthivī yena niḥkṣatriyā kṛtā ,
jāmadagnyena govinda rāmeṇākliṣṭakarmaṇā.

138. triḥsaptakṛtvaḥ pṛthivī yena niḥkṣatriyā kṛtā
jāmadagnyena govinda rāmeṇa akliṣṭakarmaṇā

138. govinda yena jāmadagnyena rāmeṇa akliṣṭakarmaṇā
triḥsaptakṛtvaḥ pṛthivī niḥkṣatriyā kṛtā

138. O Govinda, by that son of Jamadagni, Rāma, whose deeds were effortless, the earth was cleared of kṣatriyas twenty-one times.

Words meanings summery:

• त्रिःसप्तकृत्वः (triḥsaptakṛtvaḥ) - twenty-one times (seven times three)

• पृथिवी (pṛthivī) - earth, world

• येन (yena) - by whom, by which

• निःक्षत्रिया (niḥkṣatriyā) - free from kshatriyas, without kshatriyas

• कृता (kṛtā) - made, done, caused

• जामदग्न्येन (jāmadagnyena) - by Paraśurāma (by the son of Jamadagni)

• गोविन्द (govinda) - O Krishna (O Govinda (a name of Krishna/Vishnu))

• रामेण (rāmeṇa) - by Paraśurāma (by Rama)

• अक्लिष्टकर्मणा (akliṣṭakarmaṇā) - by one whose deeds are unwearied/effortless

Words meanings and morphology

त्रिःसप्तकृत्वः (triḥsaptakṛtvaḥ) - twenty-one times (seven times three)

(indeclinable)

From triḥ (thrice) + sapta (seven) + kṛtvas (times suffix).

पृथिवी (pṛthivī) - earth, world

(noun)

Nominative, feminine, singular of pṛthivī

pṛthivī - earth, ground, land

येन (yena) - by whom, by which

(pronoun)

Instrumental, masculine, singular of yad

yad - who, which, what

निःक्षत्रिया (niḥkṣatriyā) - free from kshatriyas, without kshatriyas

(adjective)

Nominative, feminine, singular of niḥkṣatriya

niḥkṣatriya - without kṣatriyas, devoid of kṣatriyas

From nis (without) + kṣatriya (warrior class).

कृता (kṛtā) - made, done, caused

(adjective)

Nominative, feminine, singular of kṛta

kṛta - made, done, performed

Past Passive Participle

Root 'kṛ' (to do, make) + past participle suffix -ta.

Root: √kṛ (class 8)

जामदग्न्येन (jāmadagnyena) - by Paraśurāma (by the son of Jamadagni)

(proper noun)

Instrumental, masculine, singular of jāmadagnya

jāmadagnya - descendant of Jamadagni, especially Paraśurāma

Derived from Jamadagni (name of a sage) by suffix -ya.

गोविन्द (govinda) - O Krishna (O Govinda (a name of Krishna/Vishnu))

(proper noun)

Vocative, masculine, singular of govinda

govinda - finder of cows, protector of cows; a name of Krishna or Vishnu

रामेण (rāmeṇa) - by Paraśurāma (by Rama)

(proper noun)

Instrumental, masculine, singular of rāma

rāma - pleasing, charming; a name of several epic heroes (Paraśurāma, Rāmacandra)

अक्लिष्टकर्मणा (akliṣṭakarmaṇā) - by one whose deeds are unwearied/effortless

(adjective)

Instrumental, masculine, singular of akliṣṭakarman

akliṣṭakarman - one whose deeds are unwearied, whose actions are effortless

Compound type : bahuvrihi (akliṣṭa+karman)

• akliṣṭa – unwearied, untired, effortless
  adjective
  Past Passive Participle
  From negative 'a-' + root 'kliś' (to suffer, be weary) + past participle suffix -ta.
  Root: √kliś (class 4)
• karman – action, deed, work
  noun (neuter)