tertionarius

1 tertionarius [? cf. W. trydydd], ? one of a group of three (men with spec. status or privilege), third man. 1282 Gruffud ab Goronou, tercionarius domini principis, spoliatus fuit uno bove Peckham Ep. 349.

2 tertionarius [cf. OF tierchonnier], (C. I., Normandy) tierchonnier, dry measure containing a third of a caboteau (also modius tertionarius). ? c1175 tenebat de eisdem abbate et monachis duas partes decime parochie de Barra ad firmam unius modii ~ii ad mensuram de Barra Act. Hen. II II 72; 1309 reddunt domino regi per annum ‥ v buss' frumenti et tercionar' j cab' frumenti S. Jers. XVIII 249; dominus rex habet ‥ de Ricardo le Provost xvj cab' j tersionar' frumenti Ib. XVIII 279; dominus rex habet de feodo de Hennodoit xl bussellos frumenti per annum ad parvam mensuram, et se extendit ad mensuram regis ad vj quart' v cab' et j tercionar' Ib. XVIII 305; 1331 summa de frumento ‥ ix cab' tierch' ‥ prec' cab' xv d. ‥ xij s. j d. (KR Ac) Ib. I 14.