The daily calender, inside an elevator, at an assisted living facility lists "Vespers: 7 PM."
This will sound pretty lame but I asked my wife, on my return home that night, what she thought vespers meant.
"For Pete's sake," said my wife, "you grew up Catholic!"
"It's evening worship Dad, evening prayers," said my 18 year-old son.
"Oh yeah, now I remember."
I grew up Catholic and also took three years of Latin in junior high school.
It derives from the Latin word vesper which means evening.
Honestly, however, I was never a Catholic Latin scholar, so I told my wife and son to only start worrying about my memory if/when I can't remember what evening worship or evening prayers means!