Artificial intelligent assistant

cheve day

cheve day Obs. rare—1.
  Explained by Gairdner as ‘day of the chief or patron saint’.

1461 Paston Lett. 425 I was at Blofeld on Sent Andruys Day wyt the person, and he understode non noder but that I cam to se is masterchepe, for it was hese cheve day.

Oxford English Dictionary

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