'Swop' definitions:

Definition of 'swop'

From: WordNet
noun
An equal exchange; "we had no money so we had to live by barter" [syn: barter, swap, swop, trade]
verb
Exchange or give (something) in exchange for [syn: trade, swap, swop, switch]

Definition of 'Swop'

From: GCIDE
  • Swop \Swop\, v. & n. Same as Swap. --Dryden. [1913 Webster]

Definition of 'swop'

From: GCIDE
  • Swap \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. [1913 Webster]
  • 2. To exchange (usually two things of the same kind); to swop. [Colloq.] --Miss Edgeworth. [1913 Webster]