
SUP
    
    WordNet
        noun
(1)   A small amount of liquid food
"A sup of ale"
verb
(2)   Take solid or liquid food into the mouth a little at a time either by drinking or by eating with a spoon
        WiktionaryText
        Verb
- To sip; to take a small amount of food or drink into the mouth, especially with a spoon.
 -  To take supper.
-  1883: Robert Louis Stevenson, Treasure Island
- ...I propose we should have up the cold pie, and let him sup.
 
 -  1879: Bram Stoker, Dracula
- I pray you, be seated and sup how you please. You will, I trust, excuse me that I do not join you; but I have dined already, and I do not sup.
 
 
 -  1883: Robert Louis Stevenson, Treasure Island
 
Etymology 2
aphetic form of what's up; Sup? = What's up? = How are you doing?
Interjection
?
-   what's up (either as a greeting or actual question).
- Sup? : (response) Not much.
 
 

