Ancient Greek δυάς

← Ancient Greek δύο (affix)

← Ancient Greek -ᾰ́ς (affix)

← Ancient Greek τριάς (mention)

← Ancient Greek τετράς (mention)

← Ancient Greek δεκάς (mention)

← Ancient Greek χιλιάς (mention)

← Ancient Greek μυριάς (mention)

→ English dyad (borrowed)

→ Ancient Greek δεκάς (mention)

→ Ancient Greek πεμπτάς (mention)

→ Ancient Greek πεντάς (mention)