We've all heard of Fate/stay night, the much-beloved visual novel by Type-Moon that taught us that people die when they're killed.
But what does the title "Fate/stay night" actually mean? We can assume for the moment that "Fate" is just a designator for the series (hence Fate/Zero, Fate/Extra, etc.), but I'm still somewhat baffled as to what "stay night" could possibly be.
(Nobody on the internet seems to know, and I figure the ultimate answer is probably "it sounds cool", but I thought I'd put this out there anyway.)