An adze is a woodworking tool related to the axe, but distinguished by its hooked, transverse blade. It’s used for shaping or dressing timber. While there are several charges in period armory that can be interpreted as adzes (as in, e.g., the arms of Rodensteyn, c.1370 [Gelre 44v], on which the illustration is based), their identification is unconfirmed as of this writing. The adze is palewise, head to chief by Society default. For related charges, see hoe.
Sigridr Rognvaldsdottir bears: Vert, an adze reversed Or within a bordure compony argent and azure.