lysis: is, f., = λύσις.I A loosening, rupture: trabes frangunt suā lysi structuras, Vitr. 6, 11.—II A talon, ogee, Vitr. 3, 4, 5; 5, 6, 6.
(1) lўsis, is, f. (λύσις), cymaise, talon [en t. d’archit.] : Vitr. Arch. 3, 4, 5 ; 5, 6, 6.