ˈgläpə̇n transitive verb
( -ed/-ing/-s )
Etymology: Middle English glopnen, from Old Norse glūpna to be surprised, frightened, or downcast; akin to Swedish dialect glūpa to gape, swallow, Old Frisian glūpa to look, Middle Low German glūpen to look with half-closed eyes, and perhaps to Old English geolu yellow — more at yellow
now dialect England : surprise , alarm , astonish