excussorium

excussorium [CL adj. = for sifting] , implement for threshing or sifting; cf. excudia a. b (threshing) floor. ~ium, A. a swyngelstok WW; 1560 costus pistrini: ‥ pro duobus ~iis ij s. iiij d. (Ac. Burs.) Ac. Coll. Wint.. b ~ium, flor on huse Ælf. Gl.; excusorium, pavimentum, flor GlH E 740; ad trituratorium sive segetis ~ium, in quo manebat ‥ servus ‥ avenam siccans, perrexit (Cadoc 7) VSB 36.