Ummm Randy, I use that word on a daily basis and you’ve never corrected me before. Sorry, but you’ve passed the Statute of limitations. Cos is now officially a word, cos I said so.
I once got a word changed by an over eager editor my 'thunk' (From the scarecrows "If I only had a brain" song) became 'think'. And that really is wrong, because think is present tense and thunk is past tense (after you ring the bell you have rung the bell).