Polish spać

← English soporific (mention)

← English hypnosis (mention)

← English somnolent (mention)

← Proto-Indo-European *swep- (root)

← Proto-Indo-European *swep- (derived)

← Polish sen (mention)

← Proto-Slavic *sъpati (inherited)

→ Polish śpiwór (compound)

→ Polish śpiący (affix)

→ Polish śpioch (suffix)

→ Polish spanie (suffix)

→ Polish zaspać (prefix)

→ Polish wyspać (affix)

→ Polish odespać (affix)

→ Polish dospać (affix)

→ Polish sypiać (suffix)

→ Polish pospać (affix)