Sanskrit स्वपस्

← Persian خوب (cognate)

← Proto-Indo-Iranian *HsuHápas (inherited)

← Proto-Indo-Aryan *HsuHápas (inherited)

← Proto-Indo-European *h₁suh₃épos (inherited)

← Proto-Indo-European *h₁su- (mention)

← Proto-Indo-European *h₃ep- (mention)