Etymology of the French word theatre
the Old French word theatre
derived from the Latin word theatrum (theater)
derived from the Greek word theatron, θέατρον (a place for public show ('theatre'); general audience-room; by implication, a show itself)
derived from the Greek word theasthai, θεᾶσθαι
derived from the Greek word thea, θεά (a female deity)
derived from the Greek word theaomai, θεάομαι (to look closely at; perceive ; by extension to visit; to look closely at; perceive; by extension to visit)