Troglodyte is a fancy word for someone who lives in a cave but these days is probably used more often to refer to stupid people by people who think they're far more intelligent. Orthographic development wasn't very interesting for a while: In Middle French, it was troglodyte, in Latin, it was troglodytae, and in Greek it was troglodytes. This could best be defined as "cave-dweller". The word is composed of two parts: trogle and dyein. Trogle had some very interesting semantic change: going back in history, it meant "cave", and then "hole", and then "mouse-hole". So, a constantly shrinking pit of a word. From this "mouse-hole" definition, trogle may be traced back to the verb trogein, meaning "to gnaw" (as in a mouse gnaws his hole). This in turn could derive from Proto-Indo-European terh, meaning "to rub". Dyein, the second part of troglodytes, means "to enter" or "sink" (as in someone sinks into a hole). Because of Sanskrit cognates, etymologists think that this comes from a Proto-Indo-European word sounding like dew, with a similar meaning.
Adam Aleksic is a 217-month-old, 2800-ounce high school senior with disturbing interests in etymology, vexillology, geography, board games, and law. Adam is anxiously awaiting his college rejections and loves writing about himself in the third person.
The Etymology Nerd