Artificial intelligent assistant

juffer

ˈjuffer Obs.
  [cf. Du. juffer maiden, young lady, miss; also, spar, beam, joint; worn-down form of jufvrouw, jonkvrouw; so Ger. jungfer (from jungfrau), also, in shipbuilding, juffer.]
  A piece of timber four or five inches square.

1677–83 Moxon Mech. Exerc. (1703) 162 Juffers, Stuff, about 4 or 5 inches square, and of several Lengths. [Hence, 1688 in R. Holme, 1823 in Nicholson Pract. Builder.]

Oxford English Dictionary

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