महाभारतः mahābhārataḥ - book-14, chapter-5, verse-4

तथैवाङ्गिरसः पुत्रौ व्रततुल्यौ बभूवतुः ।
बृहस्पतिर्बृहत्तेजाः संवर्तश्च तपोधनः ॥४॥

4. tathaivāṅgirasaḥ putrau vratatulyau babhūvatuḥ ,
bṛhaspatirbṛhattejāḥ saṁvartaśca tapodhanaḥ.

4. tathā eva aṅgirasaḥ putrau vrata-tulyau babhūvatuḥ
bṛhaspatiḥ bṛhat-tejāḥ saṃvartaḥ ca tapaḥ-dhanaḥ

4. Similarly, two sons of Angiras were born, equal in their sacred vows (vrata): Bṛhaspati, of immense brilliance, and Saṃvarta, whose wealth was spiritual discipline (tapas).

Words meanings summery:

• तथा (tathā) - thus, so, in that manner

• एव (eva) - indeed, only, certainly, just, exactly

• अङ्गिरसः (aṅgirasaḥ) - of Angiras

• पुत्रौ (putrau) - two sons

• व्रत-तुल्यौ (vrata-tulyau) - equal in vows

• बभूवतुः (babhūvatuḥ) - they (two) became, they (two) were born

• बृहस्पतिः (bṛhaspatiḥ) - Bṛhaspati (name of a sage, preceptor of the gods)

• बृहत्-तेजाः (bṛhat-tejāḥ) - of great splendor, immense brilliance

• संवर्तः (saṁvartaḥ) - Saṃvarta (name of a sage)

• च (ca) - and, also

• तपः-धनः (tapaḥ-dhanaḥ) - whose wealth is asceticism/austerity/spiritual discipline

Words meanings and morphology

तथा (tathā) - thus, so, in that manner

(indeclinable)

एव (eva) - indeed, only, certainly, just, exactly

(indeclinable)

अङ्गिरसः (aṅgirasaḥ) - of Angiras

(proper noun)

Genitive, masculine, singular of aṅgiras

aṅgiras - Angiras (name of a Vedic sage)

पुत्रौ (putrau) - two sons

(noun)

Nominative, masculine, dual of putra

putra - son, child

व्रत-तुल्यौ (vrata-tulyau) - equal in vows

(adjective)

Nominative, masculine, dual of vrata-tulya

vrata-tulya - equal in vows, similar in religious observances

Compound type : tatpuruṣa (vrata+tulya)

• vrata – vow, sacred observance, religious practice, ascetic practice
  noun (neuter)
• tulya – equal, similar, comparable
  adjective

बभूवतुः (babhūvatuḥ) - they (two) became, they (two) were born

(verb)

3rd person , dual, active, perfect (liṭ) of bhū

Root: bhū (class 1)

बृहस्पतिः (bṛhaspatiḥ) - Bṛhaspati (name of a sage, preceptor of the gods)

(proper noun)

Nominative, masculine, singular of bṛhaspati

bṛhaspati - Bṛhaspati (the preceptor of the gods, also a planetary deity)

बृहत्-तेजाः (bṛhat-tejāḥ) - of great splendor, immense brilliance

(adjective)

Nominative, masculine, singular of bṛhat-tejas

bṛhat-tejas - possessing great splendor or brilliance

Compound type : bahuvrihi (bṛhat+tejas)

• bṛhat – great, large, immense, vast
  adjective
• tejas – brilliance, splendor, energy, spiritual power
  noun (neuter)

संवर्तः (saṁvartaḥ) - Saṃvarta (name of a sage)

(proper noun)

Nominative, masculine, singular of saṃvarta

saṁvarta - Saṃvarta (a name, often associated with a powerful sage or a period of cosmic dissolution)

च (ca) - and, also

(indeclinable)

तपः-धनः (tapaḥ-dhanaḥ) - whose wealth is asceticism/austerity/spiritual discipline

(adjective)

Nominative, masculine, singular of tapas-dhana

tapas-dhana - one whose wealth is asceticism/austerity

Compound type : bahuvrihi (tapas+dhana)

• tapas – austerity, asceticism, spiritual discipline, heat, penance
  noun (neuter)
• dhana – wealth, treasure, riches, property
  noun (neuter)