महाभारतः mahābhārataḥ - book-5, chapter-66, verse-4

नरकं शम्बरं चैव कंसं चैद्यं च माधवः ।
जितवान्घोरसंकाशान्क्रीडन्निव जनार्दनः ॥४॥

4. narakaṁ śambaraṁ caiva kaṁsaṁ caidyaṁ ca mādhavaḥ ,
jitavānghorasaṁkāśānkrīḍanniva janārdanaḥ.

4. narakaṃ śambaraṃ ca eva kaṃsaṃ caidyaṃ ca mādhavaḥ
jitavān ghorasaṃkāśān krīḍan iva janārdanaḥ

4. Mādhava (Krishna), Janārdana, conquered Naraka, Śambara, Kaṃsa, and Caidya—all terrifying figures—as if merely playing.

Words meanings summery:

• नरकं (narakaṁ) - Naraka (a demon)

• शम्बरं (śambaraṁ) - Śambara (a demon)

• च (ca) - and

• एव (eva) - Emphasizing "and", meaning "and also". (indeed, only, just, also)

• कंसं (kaṁsaṁ) - Kaṃsa (a king/demon)

• चैद्यं (caidyaṁ) - Caidya (Śiśupāla, king of Cedis)

• च (ca) - and

• माधवः (mādhavaḥ) - Mādhava (a name of Krishna)

• जितवान् (jitavān) - conquered, victorious

• घोरसंकाशान् (ghorasaṁkāśān) - Refers to the demons/kings (Naraka, Śambara, Kaṃsa, Caidya). (terrible-looking, fearsome in appearance)

• क्रीडन् (krīḍan) - playing, amusing oneself

• इव (iva) - as if, like, as

• जनार्दनः (janārdanaḥ) - Janārdana (a name of Krishna)

Words meanings and morphology

नरकं (narakaṁ) - Naraka (a demon)

(proper noun)

Accusative, masculine, singular of naraka

naraka - a demon named Naraka

शम्बरं (śambaraṁ) - Śambara (a demon)

(proper noun)

Accusative, masculine, singular of śambara

śambara - a demon named Śambara

च (ca) - and

(indeclinable)

एव (eva) - Emphasizing "and", meaning "and also". (indeed, only, just, also)

(indeclinable)

कंसं (kaṁsaṁ) - Kaṃsa (a king/demon)

(proper noun)

Accusative, masculine, singular of kaṃsa

kaṁsa - a king/demon named Kaṃsa

चैद्यं (caidyaṁ) - Caidya (Śiśupāla, king of Cedis)

(proper noun)

Accusative, masculine, singular of caidya

caidya - Caidya (a king/demon, Śiśupāla)

च (ca) - and

(indeclinable)

माधवः (mādhavaḥ) - Mādhava (a name of Krishna)

(proper noun)

Nominative, masculine, singular of mādhava

mādhava - descendant of Madhu, a name of Krishna

जितवान् (jitavān) - conquered, victorious

(adjective)

Nominative, masculine, singular of jitavat

jitavat - victorious, one who has conquered

Past Active Participle

Derived from root √ji (to conquer) with suffix -tavat

Root: ji (class 1)

Note: Nominative singular masculine of jitavat.

घोरसंकाशान् (ghorasaṁkāśān) - Refers to the demons/kings (Naraka, Śambara, Kaṃsa, Caidya). (terrible-looking, fearsome in appearance)

(adjective)

Accusative, masculine, plural of ghorasaṃkāśa

ghorasaṁkāśa - of terrible appearance, dreadful-looking

Compound type : bahuvrīhi (ghora+saṃkāśa)

• ghora – terrible, dreadful, fearful
  adjective (masculine)
• saṃkāśa – resemblance, appearance
  noun (masculine)
  Prefix: sam
  Root: kāś (class 1)

क्रीडन् (krīḍan) - playing, amusing oneself

(adjective)

Nominative, masculine, singular of krīḍat

krīḍat - playing, one who plays

Present Active Participle

Derived from root √krīḍ (to play) with suffix -śatṛ

Root: krīḍ (class 1)

Note: Nominative singular masculine of krīḍat.

इव (iva) - as if, like, as

(indeclinable)

जनार्दनः (janārdanaḥ) - Janārdana (a name of Krishna)

(proper noun)

Nominative, masculine, singular of janārdana

janārdana - agitator of men, a name of Krishna/Vishnu