Artificial intelligent assistant

a-noon

† a-ˈnoon, advb. phr. Obs.
  [a prep.1 at + noon. Cf. a-day, a-night, a-morn, etc.]
  At noon.

c 1386 Chaucer Merch. T. 641 (Harl. MS.) The moone that a-noon was thilke day..In tuo of Taure [6-text MSS. at noon, none].

Oxford English Dictionary

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