Where does “Colosseum” come from?

Colosseum (Latin) comes from Latin colosseus, from Ancient Greek κολοσσιαῖος, from Ancient Greek -αῖος, from Ancient Greek -ῐος, from Proto-Indo-European -yós — Creates adjectives from noun or verb stems.

Ancestry of “Colosseum”, step by step

StepLanguageWordMeaning
1Latincolosseuscolossal, huge, gigantic
2Ancient Greekκολοσσιαῖοςcolossal
3Ancient Greek-αῖοςSuffix added to nouns or adjectives, forming adjectives: pertaining to, belonging to ("of")
4Ancient Greek-ῐοςbelonging to; of”, “belonging to”, “pertaining to
5Proto-Indo-European-yósCreates adjectives from noun or verb stems

Words derived from “Colosseum

Every word from Proto-Indo-European -yósEvery word from Ancient Greek -ῐοςEvery word from Ancient Greek -αῖος