Artificial intelligent assistant

coffing

ˈcoffing, vbl. n. Sc. Obs.
  [f. coff v. + -ing1.]
  Exchange, barter.

1502 in Peterkin Rental of Orkney (1820) 7 (Jam.) The half of the malt scat wes gevin quyt be vmquhile Erle William in coffing for landis he gat therfor in Greinvall.

Oxford English Dictionary

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