I'm trying to figure out if there is a specific rule behind the word "cancel" that would cause "cancellation" to have two L's, but "canceled" and "canceling" to have only one (in the US).
I understand the rules are very loose when it comes to double L's in English, and I have read several posts on here talking about "canceled" and "canceling" (vs "cancelled" and "cancelling"), but my specific question is more about the spelling of "cancellation".
- US English Oxford Dictionary - they do NOT mention cancelation with one "L"
- Meriam Webster - they do seem to have cancelation listed with one "L"
- Microsoft Word marks "cancelation" as an invalid word
- Same with the spell checker in Firefox
So my question is: is there a reason or rule why in US English, "cancellation" seems to have two L's (to most dictionaries), while "canceled" and "canceling" does not?