Please tell me there is a distinction between Tortoises and Turtles in Greek. They are different creatures. The one swims, the other sinks like a brick. I now have visions of Greek animal lovers trying to save tortoises by throwing them in rivers. Bad idea. Haha.
Αctually λόγος means word or speech, so a more direct translation would be non-talking. It was a military term used by the Greeks to refer to the horses. in ancient Greek, they referred to a horse as ιππος.