When did offside become 'off-sides'...?
I haven't the foggiest.
I see you missed the latest memo from FIFA :-)
Seriously though, I have no idea. I think offsides is often used in American football.
Me? I am not a native speaker.
In Norway we say Åffsaid :-)
I guess my other languages are screwing me up. How many languages do you speak?
Do you speak French? hors jeu