Cat Milk Supreme
Ancient Mariner
We would use it (not often) as in "ye goin for a sup?" as in a pint.
"Ye suppin the night, horse?"
"Am too"
"Ye suppin the night, horse?"
"Am too"
Sup is not archaic English usage. And supped (the biblical quote [misquoted?] used to make the "what's up" joke) is not archaic either.
In American English, "Sup" is a contraction of "what's up".
Apparently...Is that holy water?