Definify.com
Webster 1913 Edition
Sup
Sup
(sŭp)
, Verb.
 T.
 [
imp. & p. p. 
Supped
; p. pr. & vb. n. 
Supping
.] [OE. 
soupen 
to drink, AS. sūpan
; akin to D. zuipen
, G. saufen
, OHG. sūfan
, Icel. sūpa
, Sw. supa
, Dan. söbe
. Cf. Sip
, Sop
, Soup
, Supper
.] To take into the mouth with the lips, as a liquid; to take or drink by a little at a time; to sip. 
There I’ll 
Balm and nectar in my cup.
 sup
Balm and nectar in my cup.
Crashaw.
Sup
,Noun.
 A small mouthful, as of liquor or broth; a little taken with the lips; a sip. 
Tom Thumb had got a little 
 sup
. Drayton.
Sup
,Verb.
 I.
 [See 
Supper
.] To eat the evening meal; to take supper. 
I do entreat that we may 
 sup 
together. Shakespeare
Sup
,Verb.
 T.
 To treat with supper. 
[Obs.] 
Sup 
them well and look unto them all. Shakespeare
Webster 1828 Edition
Sup
SUP
,Verb.
T.
   There I'll sup
 Balm and nectar in my cup.
SUP
,Verb.
I.
   When they had supped,they brought Tobias in.
SUP
,Verb.
T.
   Sup them well. [Not in use.]
SUP
,Noun.
   Tom Thumb got a little sup.