Sup

1. take (drink or liquid food) by sips or spoonfuls.

   she supped up her soup delightedly

   he was supping straight from the bottle

1. a sip of liquid.

   he took another sup of wine

Old English sūpan (verb), sūpa (noun), of Germanic origin; related to Dutch zuipen, German saufen ‘to drink’.

1. eat supper.

   you'll sup on seafood delicacies

Middle English: from Old French super, of Germanic origin; related to sup¹.

1. what's up; what's happening (used as a friendly or informal greeting).

   sup, guys

1950s (in Scottish use, in the sense ‘what is the matter?’): informal abbreviation of what's up ; compare wassup.

prefix

variant spelling of sub- assimilated before p (as in suppurate ).