Ok, that did faze me.

Thanks though, you've saved me countless future misspellings of that word.

I've always wondered why the correct spelling of 'faze' seems to be gradually disappearing, considering that the right spelling is actually easier than the most common misspelling (phase).

I think it has to do with our tendency to overcorrect spelling rather than use the simpler ones (at least when the native speakers comment here). I believe it's exploited in etymology - i.e. even literally authors made errors in spelling but these are thought to come mostly from trying to be more correct than neccessary

For me, while I had often heard and used "faze" in conversation, I seldom saw it in writing. Early on my mind got comfortable with the bogus idea that it shared etymology with "phase", and so I assumed they were spelled the same.