/ gləʊt; NAmE gloʊt/ verb
[ v ] gloat (about / at / over sth) to show that you are happy about your own success or sb else's failure, in an unpleasant way
SYN crow :
She was still gloating over her rival's disappointment.
► gloat·ing adjective :
a gloating look
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WORD ORIGIN
late 16th cent.: of unknown origin; perhaps related to Old Norse glotta to grin and Middle High German glotzen to stare. The original sense was give a sideways or furtive look , hence cast amorous or admiring glances ; the current sense dates from the mid 18th cent.