English word coliseum comes from Ancient Greek κολοσσός, and later Latin colosseus (Colossal, huge, gigantic.)
κολοσσός (Ancient Greek)
κολοσσιαῖος (Ancient Greek)
colosseus (Latin)
Colossal, huge, gigantic.
Colosseum (Latin)
coliseum (English)
A large theatre, cinema, or stadium.. A large, often circular building, for indoor sporting events, exhibitions, concerts, etc.; arena.