I have sometimes wondered about the word heyday, Might it have something to do with haying, with jolly rustics turning work into play in the fields?
Dictionaries laugh in my face.
I finally thought to look up a word that’s long puzzled me: the verb vet. I had anticipated some weirdness in its past — perhaps a Latin phrase about trustworthiness for which it’s a one-syllable stand-in? Alas, the origin is disappointingly obvious, though not so obvious that I would have guessed it.
Sir Ernest Gowers, or a second- or third-generation reviser, writing about what has come to be called the etymological fallacy, the mistaken idea that a word’s present meaning must be related to that word’s etymology.