Artificial intelligent assistant

ewerer

ˈewerer
  [f. ewer1 or ewer-y + -er1.]
  A servant who supplied guests, etc. at table with water to wash their hands.

c 1450 MS. Sloane 1986. 40 The ewerer [v.r. euwer] schal hele his lordes borde With dowbull napere at on bare worde. 1851 Turner Dom. Archit. III. iii. 79 When the ewerer brought water. 1858 G. Gilfillan Mem. in Wyatt's Poet. Wks. p. vii, At Anne Boleyn's marriage in July 1533..Wyatt officiated as ewerer, in room of his father.

Oxford English Dictionary

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