Ancient Greek -πλόος

← Proto-Indo-European *pel- (root)

← Proto-Indo-European *pel- (derived)

→ English -fold (mention)

→ English -ploid (derived)

→ Ancient Greek πέπλος (mention)

→ Ancient Greek ἁπλόος (affix)

→ Ancient Greek διπλόος (affix)

→ Latin duplus (mention)