Apparently, I have been spelling CHAPLIN and been meaning to spell CHAPLAIN for quite some time now.
The chaplain here caught me misspelling the word today and corrected me. I think I have been messing this up for my entire career. No one has even mentioned it before. Boggles the mind, it does. I would like to think I am a decent speller and I use the correct spellings, except for this glitch.