umbrere UK /ʌmˈbɹɛə/US /ʌmˈbɹɛəɹ/ noun1 •(historical) In medieval armour, a visor, or projection like the peak of a cap, to which a fixed or movable faceguard was sometimes attached.Himself being clad with his bright armour, his umbrere pulled down, and a mighty spear in his hand, so big as they all marvelled at his good making. — 2014 formsumbreres