महाभारतः mahābhārataḥ - book-1, chapter-98, verse-3

एवमुच्चावचैरस्त्रैर्भार्गवेण महात्मना ।
त्रिःसप्तकृत्वः पृथिवी कृता निःक्षत्रिया पुरा ॥३॥

3. evamuccāvacairastrairbhārgaveṇa mahātmanā ,
triḥsaptakṛtvaḥ pṛthivī kṛtā niḥkṣatriyā purā.

3. evam uccāvacaiḥ astraiḥ bhārgaveṇa mahātmanā
triḥsaptakṛtvaḥ pṛthivī kṛtā niḥkṣatriyā purā

3. Thus, in ancient times, the great-souled Bhargava (Parashurama), using various weapons, made the earth devoid of kṣatriyas twenty-one times.

Words meanings summery:

• एवम् (evam) - thus, in this manner, so

• उच्चावचैः (uccāvacaiḥ) - with high and low, with various, with diverse

• अस्त्रैः (astraiḥ) - with weapons, by means of missiles

• भार्गवेण (bhārgaveṇa) - by Bhargava, by Parashurama (son of Bhrigu)

• महात्मना (mahātmanā) - by the great-souled one, by the noble one

• त्रिःसप्तकृत्वः (triḥsaptakṛtvaḥ) - twenty-one times, seven times thrice

• पृथिवी (pṛthivī) - the earth, land

• कृता (kṛtā) - made, done, accomplished

• निःक्षत्रिया (niḥkṣatriyā) - devoid of kṣatriyas, without kṣatriyas

• पुरा (purā) - formerly, in ancient times

Words meanings and morphology

एवम् (evam) - thus, in this manner, so

(indeclinable)

उच्चावचैः (uccāvacaiḥ) - with high and low, with various, with diverse

(adjective)

Instrumental, masculine, plural of uccāvaca

uccāvaca - high and low, various, diverse

Compound type : dvandva (ucca+avaca)

• ucca – high, elevated
  adjective (masculine)
• avaca – low, below
  adjective (masculine)

अस्त्रैः (astraiḥ) - with weapons, by means of missiles

(noun)

Instrumental, neuter, plural of astra

astra - weapon, missile

भार्गवेण (bhārgaveṇa) - by Bhargava, by Parashurama (son of Bhrigu)

(proper noun)

Instrumental, masculine, singular of bhārgava

bhārgava - descendant of Bhrigu, Parashurama

derived from Bhrigu

महात्मना (mahātmanā) - by the great-souled one, by the noble one

(adjective)

Instrumental, masculine, singular of mahātman

mahātman - great-souled, noble, magnanimous

Compound type : bahuvrihi (mahā+ātman)

• mahā – great, large, mighty
  adjective (feminine)
• ātman – self, soul, spirit, essence
  noun (masculine)

त्रिःसप्तकृत्वः (triḥsaptakṛtvaḥ) - twenty-one times, seven times thrice

(indeclinable)

kṛtvasuc suffix indicating 'times'

पृथिवी (pṛthivī) - the earth, land

(noun)

Nominative, feminine, singular of pṛthivī

pṛthivī - earth, ground, land

कृता (kṛtā) - made, done, accomplished

(adjective)

Nominative, feminine, singular of kṛta

kṛta - made, done, accomplished, produced

Past Passive Participle

from root kṛ (to do, make)

Root: kṛ (class 8)

निःक्षत्रिया (niḥkṣatriyā) - devoid of kṣatriyas, without kṣatriyas

(adjective)

Nominative, feminine, singular of niḥkṣatriya

niḥkṣatriya - devoid of kṣatriyas, without kṣatriyas

Compound type : bahuvrihi (nis+kṣatriya)

• nis – without, out, free from
  indeclinable
• kṣatriya – a member of the kṣatriya (warrior/ruler) caste
  noun (masculine)

पुरा (purā) - formerly, in ancient times

(indeclinable)