महाभारतः mahābhārataḥ - book-9, chapter-30, verse-12

वातापिरिल्वलश्चैव त्रिशिराश्च तथा विभो ।
सुन्दोपसुन्दावसुरौ क्रिययैव निषूदितौ ॥१२॥

12. vātāpirilvalaścaiva triśirāśca tathā vibho ,
sundopasundāvasurau kriyayaiva niṣūditau.

12. vātāpiḥ ilvalaḥ ca eva triśirāḥ ca tathā vibho
sundopasundau asurau kriyayā eva niṣūditau

12. vibho vātāpiḥ ilvalaḥ ca eva triśirāḥ ca tathā
asurau sundopasundau kriyayā eva niṣūditau

12. And O Lord, Vātāpi, Ilvala, and Triśirā, as well as the two asuras Sunda and Upasunda, were similarly destroyed by action (kriyā) alone.

Words meanings summery:

• वातापिः (vātāpiḥ) - Vātāpi (name of an asura)

• इल्वलः (ilvalaḥ) - Ilvala (name of an asura)

• च (ca) - and

• एव (eva) - indeed, only, certainly

• त्रिशिराः (triśirāḥ) - Triśirā (a three-headed asura)

• च (ca) - and

• तथा (tathā) - thus, similarly, also

• विभो (vibho) - O Lord, O Mighty one

• सुन्दोपसुन्दौ (sundopasundau) - Sunda and Upasunda (names of two asuras)

• असुरौ (asurau) - two demons, two asuras

• क्रियया (kriyayā) - by action, by activity

• एव (eva) - indeed, only, certainly

• निषूदितौ (niṣūditau) - slain, destroyed

Words meanings and morphology

वातापिः (vātāpiḥ) - Vātāpi (name of an asura)

(proper noun)

Nominative, masculine, singular of vātāpi

vātāpi - Vātāpi (a proper noun for an asura, often associated with his brother Ilvala)

इल्वलः (ilvalaḥ) - Ilvala (name of an asura)

(proper noun)

Nominative, masculine, singular of ilvala

ilvala - Ilvala (a proper noun for an asura, often associated with his brother Vātāpi)

च (ca) - and

(indeclinable)

एव (eva) - indeed, only, certainly

(indeclinable)

त्रिशिराः (triśirāḥ) - Triśirā (a three-headed asura)

(noun)

Nominative, masculine, singular of triśiras

triśiras - three-headed

Compound type : bahuvrīhi (tri+śiras)

• tri – three
  numeral
• śiras – head
  noun (neuter)

च (ca) - and

(indeclinable)

तथा (tathā) - thus, similarly, also

(indeclinable)

विभो (vibho) - O Lord, O Mighty one

(noun)

Vocative, masculine, singular of vibhu

vibhu - lord, master, all-pervading, mighty

सुन्दोपसुन्दौ (sundopasundau) - Sunda and Upasunda (names of two asuras)

(proper noun)

Nominative, masculine, dual of sundopasunda

sundopasunda - Sunda and Upasunda (a pair of asuras who were brothers)

Compound type : dvandva (sunda+upasunda)

• sunda – Sunda (name of an asura)
  proper noun (masculine)
• upasunda – Upasunda (name of an asura, Sunda's brother)
  proper noun (masculine)

असुरौ (asurau) - two demons, two asuras

(noun)

Nominative, masculine, dual of asura

asura - demon, anti-god, celestial being (in earlier Vedic texts)

क्रियया (kriyayā) - by action, by activity

(noun)

Instrumental, feminine, singular of kriyā

kriyā - action, activity, performance, ritual

Root: kṛ (class 8)

एव (eva) - indeed, only, certainly

(indeclinable)

निषूदितौ (niṣūditau) - slain, destroyed

(adjective)

Nominative, masculine, dual of niṣūdita

niṣūdita - slain, destroyed, killed

Past Passive Participle

Derived from root sūd with prefix ni

Prefix: ni

Root: sūd (class 10)