The word we’re kicking off the challenge with is avid. You know, like someone who likes to read is an avid reader or…hm, I can’t think of a way to use that word that isn’t describing someone’s fondness for a hobby.
Avid first showed up in 1769, yes, an exact date. That’s pretty rare, although more common the more recent it gets. It comes from the French (as in modern French, what they speak today) avide, greedy, and before that the classical Latin avidus, also greedy. So I guess avid is greedy. Interesting.