महाभारतः mahābhārataḥ - book-1, chapter-202, verse-19

राजर्षिभिरदृश्यद्भिरृषिभिश्च महासुरौ ।
उभौ विनिश्चयं कृत्वा विकुर्वाते वधैषिणौ ॥१९॥

19. rājarṣibhiradṛśyadbhirṛṣibhiśca mahāsurau ,
ubhau viniścayaṁ kṛtvā vikurvāte vadhaiṣiṇau.

19. rājarṣibhiḥ adṛśyadbhīḥ ṛṣibhiḥ ca mahāsurau
ubhau viniścayam kṛtvā vikurvāte vadheṣiṇau

19. Unseen by the royal sages (rājarṣis) and other sages (ṛṣis), both great asuras, having made a firm decision, proceeded (to act) seeking to kill.

Words meanings summery:

• राजर्षिभिः (rājarṣibhiḥ) - by the royal sages, by the king-sages

• अदृश्यद्भीः (adṛśyadbhīḥ) - by those unseen, by those invisible

• ऋषिभिः (ṛṣibhiḥ) - by the sages

• च (ca) - and

• महासुरौ (mahāsurau) - the two great asuras (demons)

• उभौ (ubhau) - both

• विनिश्चयम् (viniścayam) - firm decision, determination

• कृत्वा (kṛtvā) - having made, after making, having done

• विकुर्वाते (vikurvāte) - they performed, they acted, they changed form

• वधेषिणौ (vadheṣiṇau) - desirous of killing, seeking to kill

Words meanings and morphology

राजर्षिभिः (rājarṣibhiḥ) - by the royal sages, by the king-sages

(noun)

Instrumental, masculine, plural of rājarṣi

rājarṣi - royal sage, a king who is also a sage

Compound type : Tatpuruṣa (rajan+ṛṣi)

• rajan – king, ruler
  noun (masculine)
• ṛṣi – sage, seer, inspired poet
  noun (masculine)

अदृश्यद्भीः (adṛśyadbhīḥ) - by those unseen, by those invisible

(participle)

Instrumental, masculine, plural of adṛśyat

adṛśyat - unseen, invisible, not seeing

Present Active Participle

From a- (negation) + √dṛś (to see) + śatṛ suffix

Root: √dṛś (class 1)

Note: Agrees with rājarṣibhiḥ and ṛṣibhiḥ.

ऋषिभिः (ṛṣibhiḥ) - by the sages

(noun)

Instrumental, masculine, plural of ṛṣi

ṛṣi - sage, seer, inspired poet

च (ca) - and

(indeclinable)

महासुरौ (mahāsurau) - the two great asuras (demons)

(noun)

Nominative, masculine, dual of mahāsura

mahāsura - great asura, great demon

Compound type : Karmadhāraya (mahā+asura)

• mahā – great, mighty, large
  adjective (feminine)
• asura – demon, anti-god
  noun (masculine)

उभौ (ubhau) - both

(pronoun)

Nominative, masculine, dual of ubha

ubha - both

Note: Refers to the two asuras.

विनिश्चयम् (viniścayam) - firm decision, determination

(noun)

Accusative, masculine, singular of viniścaya

viniścaya - firm decision, determination, certainty, ascertainment

Prefixes: vi+ni

Root: √ci (class 5)

कृत्वा (kṛtvā) - having made, after making, having done

(indeclinable)

Absolutive (Gerund)

Formed from √kṛ (to do) + tvā suffix

Root: √kṛ (class 8)

विकुर्वाते (vikurvāte) - they performed, they acted, they changed form

(verb)

3rd person , dual, middle, present (laṭ) of vikṛ

Prefix: vi

Root: √kṛ (class 8)

वधेषिणौ (vadheṣiṇau) - desirous of killing, seeking to kill

(adjective)

Nominative, masculine, dual of vadheṣin

vadheṣin - desirous of killing, murderous

Compound type : Tatpuruṣa (vadha+eṣin)

• vadha – killing, slaughter, murder
  noun (masculine)
• eṣin – desiring, seeking
  adjective (masculine)
  Agent noun/adjective
  From √iṣ (to desire, seek) + -in suffix
  Root: √iṣ (class 4)

Note: Agrees with mahāsurau and ubhau.