† port-assietObs.rare. [ad. F. porte-assiette, f. porte- + assiette plate.] A disk of metal, wood, etc., placed under a plate or dish. 1663Rutland MSS. (1905) IV. 541 For 8 balls of box, with hinges and hesps, for the feet of the 2 sylver portassiets, 2s.