Transcript:
Housemate: Question. Why is Friday evening the end of Friday but, Christmas Evening is the beginning of Christmas?
Me: Technically there are two. “Christmas eve” and “Christmas Eve”. That’s not counting the third one, where “Christmas” refers to the season instead of the day(s), meaning there are many Christmas eves but only one Christmas Eve.
“Eve” has meant “evening”, and so has “even”. Even (ha) if people don’t use them in that way anymore. The “doll” and “her” “examples” are just pointlessly-absurd.