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The Collaborative International Dictionary
Nunchion

Nunchion \Nun"chion\, n. [OE. nonechenche, for noneschenche, prop., a noon drink; none noon + schenchen, schenken, skinken, to pour, AS. scencan. See Noon, and Skink, v. i.] A portion of food taken at or after noon, usually between full meals; a luncheon. [Written also noonshun.]
--Hudibras.

Wiktionary
nunchion

n. (alternative form of nuncheon English)