theysia Save Du Cange THEYSIA, Pertica, seu mensura sex pedum, Gall. Toise. Franchesiæ Villæ de Pineto ann. 1343. e Schedis D. Lancelot : Terminos vero dictæ franchesiæ declaramus..... extra menia dictæ villæ per cc. Theysias. Vide Teisia et Thesia.