I saw someone's comment in my Facebook group having a small chat with someone else from the UK and caught this word "accidently". To make sure I didn't mistakenly see this, I should provide this screenshot:
This word is not listed in my dictionary app: OALD, but it is, in M-W. However, I see this note:
The adverb accidently has been in use since the 18th century. It continues to appear regularly in published writing, but it is far less common than accidentally, and it is sometimes cited as an error.
The person seems to be 40+ years old, so I think mentioning that info above is relevant. It's really either the person wrote that intentionally or subconsciously. However, I want to know whether in the formal context this word is considered as a typo of accidentally or not. Or if there's any difference I don't know, please do let me know.
I think it's worth mentioning that, in my ears view, when I hear this word i.e. accidently. It sounds to me that the event happens not only by mistakes, but by a real accident that perhaps could be not a mistake. Suppose when someone accidently stabbed my heart. However that's my opinion.
