v. & n.
v.intr. (often foll. by on, upon, over) consider or contemplate with lust, greed, malice, triumph, etc. (gloated over his collection).
n. 1 the act of gloating. 2 a look or expression of triumphant satisfaction. gloater n. gloatingly adv.
[ 16th c.: orig. unkn., but perh. rel. to ON glotta grin, MHG glotzen stare ]