heart-hollow

Philippo was so prone to jealousy, that he suspected even this paragon, and worked himself into a belief in her infidelity by such euphuisms as these: "The greener the Alisander leaves be, the more bitter is the sap, and the salamander is the most warm when he lieth furthest from the fire," therefore "women are most heart-hollow, when they are most lip-holy."

A History of English Prose Fiction Bayard Tuckerman