The word dinosaur comes from the Greek terms dienos (terrible) and sauros (lizard).
Not really. In fact, dinosaurs are not lizards.
Dinosaurs are their own category of animal, most closely related to birds and crocodiles. They come from a group of reptiles called Archosauromorphs. Lizards come from a distantly related reptile group called Lepidosauromorphs. The difference? Well, you’d have to look at the skulls of these animals and start counting fenestrae…or holes in the various skull bones.