On the other hand, I've pronounced /etc as "etsy" ("slash etsy", usually) for, I dunno, 25 years or more.

NFI where I first heard it pronounced like that, though.

Neither had I, until yesterday. Weird timing for this post to pop up.

I have always called it either 'slash eee-tee-cee' or 'slash etcetera' however yesterday I was watching a video of Andreas working on SerenityOS and he was implementing /etc/shadow and referred to it as 'et-see' which made me think I've never heard it pronounced like that before (or if I have I have long forgotten it).

I kinda like it though.

I've heard "f stab" a few times, although it's always been somewhat tongue in cheek. I've not heard it as a genuine misunderstanding of the canonical pronunciation.

I always thought the correct way was "attic" or "et cetera", but a few years ago I learned it is etsy.

Strange. I've been calling /etc "etsy" for 25 years.