Today a couple of those “why didn’t I think of wondering about this before?” things.
First, why is a bald eagle called a bald eagle when, as you can see from the picture, it isn’t bald-headed? The answer appears to be that the word bald can also be used to mean “white” or “partially white”. That was news to me.
Next, where does the word bigot come from? When I asked myself this question, I guessed French, and I was sort of right. According to the OED it comes from Middle French. It appears to have been used as a term of abuse for Normans, and was also used as a by-name in Middle English. However, ultimately the term may have been a distortion of By God, from English or some other Germanic language.
Photo credit: W. Lloyd MacKenzie