Please state in which country your phrase tends to be used, what the phrase is, and what it should be.
Example:
In America, recently came across “back-petal”, instead of back-pedal. Also, still hearing “for all intensive purposes” instead of “for all intents and purposes”.
I’ve mentioned this here before but in the UK “an historic” is written because we are slowly dropping the letter “h” at the front of words from pronunciation. UK people often say “an ‘istoric” so it kinda makes sense… but looks clumsy.
honour, hour, homage, honest, heir
It also makes it more clear your not saying “ahistoric” or “ahistorical”