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

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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]

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