महाभारतः mahābhārataḥ - book-13, chapter-140, verse-13

एवं दग्धा भगवता दानवाः स्वेन तेजसा ।
अगस्त्येन तदा राजंस्तपसा भावितात्मना ॥१३॥

13. evaṁ dagdhā bhagavatā dānavāḥ svena tejasā ,
agastyena tadā rājaṁstapasā bhāvitātmanā.

13. evam dagdhāḥ bhagavatā dānavāḥ svena tejasā
agastyena tadā rājan tapasā bhāvitātmanā

13. rājan tadā evam bhagavatā agastyena bhāvitātmanā
svena tapasā tejasā dānavāḥ dagdhāḥ

13. Thus, O King (rājan), the Dānavas (a class of asuras) were destroyed then by the venerable Agastya, whose self (ātman) was cultivated by ascetic practice (tapas), through his own spiritual energy.

Words meanings summery:

• एवम् (evam) - thus, in this way, so

• दग्धाः (dagdhāḥ) - burnt, destroyed

• भगवता (bhagavatā) - By the venerable Agastya. (by the venerable one, by the divine one)

• दानवाः (dānavāḥ) - the Dānavas (a class of asuras/demons)

• स्वेन (svena) - by his own

• तेजसा (tejasā) - by power, by energy, by spiritual energy

• अगस्त्येन (agastyena) - by Agastya (a revered sage)

• तदा (tadā) - then, at that time

• राजन् (rājan) - O King

• तपसा (tapasā) - by ascetic power, by austerity

• भावितात्मना (bhāvitātmanā) - by the one whose self is purified/cultivated/refined

Words meanings and morphology

एवम् (evam) - thus, in this way, so

(indeclinable)

दग्धाः (dagdhāḥ) - burnt, destroyed

(adjective)

Nominative, masculine, plural of dagdha

dagdha - burnt, consumed, destroyed

Past Passive Participle

Derived from root dah (to burn)

Root: dah (class 1)

भगवता (bhagavatā) - By the venerable Agastya. (by the venerable one, by the divine one)

(adjective)

Instrumental, masculine, singular of bhagavat

bhagavat - venerable, divine, fortunate, prosperous

दानवाः (dānavāḥ) - the Dānavas (a class of asuras/demons)

(noun)

Nominative, masculine, plural of dānava

dānava - a descendant of Danu, a class of demons/asuras

स्वेन (svena) - by his own

(adjective)

Instrumental, masculine, singular of sva

sva - one's own, self

तेजसा (tejasā) - by power, by energy, by spiritual energy

(noun)

Instrumental, neuter, singular of tejas

tejas - luster, brilliance, spiritual power, energy, vital essence

अगस्त्येन (agastyena) - by Agastya (a revered sage)

(proper noun)

Instrumental, masculine, singular of agastya

agastya - Agastya (name of a great sage)

तदा (tadā) - then, at that time

(indeclinable)

राजन् (rājan) - O King

(noun)

Vocative, masculine, singular of rājan

rājan - king, ruler

तपसा (tapasā) - by ascetic power, by austerity

(noun)

Instrumental, neuter, singular of tapas

tapas - heat, asceticism, spiritual austerity, penance

भावितात्मना (bhāvitātmanā) - by the one whose self is purified/cultivated/refined

(adjective)

Instrumental, masculine, singular of bhāvitātman

bhāvitātman - one whose self (ātman) is cultivated/purified/refined through meditation/devotion

Compound type : bahuvrīhi (bhāvita+ātman)

• bhāvita – cultivated, purified, meditated upon, made to be
  adjective
  Past Passive Participle
  Derived from causative of root bhū (to be); means 'caused to be' or 'made to be', implying cultivation or purification.
  Root: bhū (class 1)
• ātman – self, soul, essence, spirit, individual soul (ātman)
  noun (masculine)