महाभारतः mahābhārataḥ - book-11, chapter-23, verse-18

कर्णिनालीकनाराचैरास्तीर्य शयनोत्तमम् ।
आविश्य शेते भगवान्स्कन्दः शरवणं यथा ॥१८॥

18. karṇinālīkanārācairāstīrya śayanottamam ,
āviśya śete bhagavānskandaḥ śaravaṇaṁ yathā.

18. karṇi-nālīka-nārācaiḥ āstīrya śayana-uttamam
āviśya śete bhagavān skandaḥ śara-vaṇam yathā

18. bhagavān karṇi-nālīka-nārācaiḥ śayana-uttamam
āstīrya āviśya śete yathā skandaḥ śara-vaṇam

18. Having spread an excellent bed with broad-headed arrows (karṇi), shaft-like arrows (nālīka), and iron arrows (nārāca), the revered one (bhagavān) lies down, just as Skanda entered the grove of reeds (śara-vaṇa).

Words meanings summery:

• कर्णि-नालीक-नाराचैः (karṇi-nālīka-nārācaiḥ) - with broad-headed arrows, shaft-like arrows, and iron arrows

• आस्तीर्य (āstīrya) - having spread, having covered

• शयन-उत्तमम् (śayana-uttamam) - excellent bed, best couch

• आविश्य (āviśya) - having entered, having resorted to, having taken possession of

• शेते (śete) - lies down, sleeps, rests

• भगवान् (bhagavān) - the revered one, the divine one, the fortunate one

• स्कन्दः (skandaḥ) - Skanda (Kartikeya, the god of war)

• शर-वणम् (śara-vaṇam) - the mythical place where Skanda was born or nurtured (grove of reeds, thicket of reeds)

• यथा (yathā) - just as, as, like

Words meanings and morphology

कर्णि-नालीक-नाराचैः (karṇi-nālīka-nārācaiḥ) - with broad-headed arrows, shaft-like arrows, and iron arrows

(noun)

Instrumental, masculine, plural of karṇi-nālīka-nārāca

karṇi-nālīka-nārāca - broad-headed, shaft-like, and iron arrows (collectively)

Compound type : dvandva (karṇi+nālīka+nārāca)

• karṇi – broad-headed arrow
  noun (masculine)
• nālīka – shaft-like arrow, reed-arrow
  noun (masculine)
• nārāca – iron arrow, steel arrow
  noun (masculine)

आस्तीर्य (āstīrya) - having spread, having covered

(indeclinable)

Absolutive (Gerund)

Prefix: ā

Root: stṛ (class 5)

शयन-उत्तमम् (śayana-uttamam) - excellent bed, best couch

(noun)

Accusative, neuter, singular of śayana-uttama

śayana-uttama - excellent bed

Compound type : karmadhāraya (śayana+uttama)

• śayana – bed, couch, lying down
  noun (neuter)
  Root: śī (class 2)
• uttama – excellent, best, highest
  adjective (neuter)

आविश्य (āviśya) - having entered, having resorted to, having taken possession of

(indeclinable)

Absolutive (Gerund)

Prefix: ā

Root: viś (class 6)

शेते (śete) - lies down, sleeps, rests

(verb)

3rd person , singular, middle, present indicative (laṭ) of śī

Root: śī (class 2)

भगवान् (bhagavān) - the revered one, the divine one, the fortunate one

(adjective)

Nominative, masculine, singular of bhagavat

bhagavat - possessing fortune, glorious, divine, revered

स्कन्दः (skandaḥ) - Skanda (Kartikeya, the god of war)

(proper noun)

Nominative, masculine, singular of skanda

skanda - Skanda, Kartikeya, god of war, son of Shiva

शर-वणम् (śara-vaṇam) - the mythical place where Skanda was born or nurtured (grove of reeds, thicket of reeds)

(noun)

Accusative, neuter, singular of śara-vaṇa

śara-vaṇa - grove of reeds, reed jungle

Compound type : tatpuruṣa (śara+vaṇa)

• śara – reed, arrow
  noun (masculine)
• vaṇa – grove, forest, thicket
  noun (neuter)

यथा (yathā) - just as, as, like

(indeclinable)