I.
past of moon
II. ˈmün(ə̇)d adjective
Etymology: moon (I) + -ed
archaic : ornamented with or shaped like the moon especially in the shape of a crescent
with his mooned train the strutting peacock … flutters into the Ark — Michael Drayton
the angelic squadron … sharpening in mooned horns their phalanx — John Milton