Artificial intelligent assistant

yostregere

yostregere
  obs. form of ostreger.

1563 in N. & Q. (1889) 7th Ser. VIII. 106 Here vnder lyeth Xp'ofor Walasto' who somtyme was..on of y⊇ yostregere unto y⊇ late kynges & quenes of famous memorye.

Oxford English Dictionary

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