The Collaborative International Dictionary
Exuperate
Exuperate \Ex*u"per*ate\, v. t. [L. exuperatus, exsuperatus, p. p. of exuperare, exsuperare to excel; ex out + superare to go over, super above, over.] To excel; to surmount. [Obs.]
Wiktionary
exuperate
vb. (context obsolete English) To excel; to surmount.