Persian خفتن

← English hypnosis (mention)

← Ancient Greek ὕπνος (cognate)

← Proto-Indo-Iranian *swap- (derived)

← Proto-Iranian *hwap- (derived)

← Northern Kurdish xew (cognate)

← Northern Kurdish xewn (mention)

← Middle Persian 𐭧𐭥𐭠𐭡 (derived)

← Russian спать (cognate)

← Parthian xwsp- (cognate)

→ Kazakh құтпан (derived)