Artificial intelligent assistant

cosser

ˈcosser, coser Obs.
  [f. coss v. + -er1.]
  A dealer; a broker; a ‘horse-corser’. So ˈcossery (in 5 coseri), barter, bargaining.

14.. Voc. in Wr.-Wülcker 684/40 Hic mango, a cosyr. ? a 1400 Morte Arth. 1582 It come neuer of knyghthede..To carpe of coseri, whene captyfis ere takyne.

Oxford English Dictionary

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