You will probably look heavenward at this (or not really care) but the penny just dropped with me about a word I’ve never really given a great deal of thought about, in terms of its etymology.
The Odeon (cinema chain) is a shortening of Nickelodeon. Where, I assume, in the early days of cinema it cost a nickel to see a movie.
But an Odeon is also a Greek amphitheatre of entertainment (a singing place) in ancient Greece. A nickel to visit a singing place. With the nickel now dropped.
So there you are.
Who’d have thought.
(Cineworld, Vue, The Filmhouse and Picturehouse are rather more straightforward.)