Swap (?), v. t. [imp. & p. p. Swapped (?); p. pr. & vb. n. Swapping.] [OE. swappen to strike; cf. E. to strike a bargain; perh. akin to E. sweep. Cf. Swap a blow, Swap, v. i.] [Written also swop.]
1.
To strike; -- with off.
[Obs. or Prov. Eng.] "
Swap off his head!"
Chaucer.
2.
To exchange (usually two things of the same kind); to swop.
[Colloq.]
Miss Edgeworth.
© Webster 1913.
Swap, v. i. [Cf. Swap, v. t.]
1.
To fall or descend; to rush hastily or violently.
C. Richardson (Dict.).
All suddenly she swapt adown to ground.
Chaucer.
2.
To beat the air, or ply the wings, with a sweeping motion or noise; to flap.
© Webster 1913.
Swap, n. [Cf. G. schwapp, n., a slap, swap, schwapp, schwapps, interj., slap! smack! and E. swap, v.t.]
1.
A blow; a stroke.
[Obs. or Prov. Eng.]
2.
An exchange; a barter.
[Colloq.]
Sir W. Scott.
© Webster 1913.
Swap, adv. [See Swap, n.]
Hastily.
[Prov. Eng.]
© Webster 1913.