Sup \Sup\, n. A small mouthful, as of liquor or broth; a little taken with the lips; a sip.

Tom Thumb had got a little sup. --Drayton.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Sup \Sup\, v. i. [See Supper.]

To eat the evening meal; to take supper.

I do entreat that we may sup together. --?

Source: Webster's Revised Unabridged Dictionary (1913)
 

Sup \Sup\, v. t. To treat with supper. [Obs.]

Sup them well and look unto them all. --Shak.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Sup \Sup\, v. t. [imp. & p. p. Supped; p. pr. & vb. n. Supping.]

[OE. soupen to drink, AS. s?pan; akin to D. zuipen, G. saufen, OHG. s?fan, Icel. s?pa, Sw. supa, Dan. s["o]be. 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 sup Balm and nectar in my cup. --Crashaw.

Source: Webster's Revised Unabridged Dictionary (1913)