Artificial intelligent assistant

bul

bul Obs.
  Also bule, bull.
  [app. a. OF. boul, boule, bole ‘fraude, tromperie, astuce’ (Godef.): cf. bull v.3]
  ? Falsehood.

a 1300 Cursor M. 21270, I sal you tel, wit-vten bul [v.r. bule]. Ibid. 26371 Sais crist to ypocrites..yee ar..al ful wit wickednes, tresun, and bull.

Oxford English Dictionary

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