Here is a list of verbs that start with OU.
oust, ousted, ousting, outclass, outclassed
outdated, outdistanced, outdistancing, outdo, outdrew
outface, outfitted, outfought, outfox, outgeneraled
outgrip, outgrow, outlawed, outline, outlined
outlines, outlining, outlived, outmaneuvered, outmatched
outnumber, outnumbered, outplayed, outputting, outrage
outraged, outrun, outscoring, outsmarted, outspread
outstripping, outweigh, outweighed, outwit
Hope you enjoy this page of verbs that start with ou and the rest of this verb list site as well.
Did I miss any verbs? Visitors can make this a more useful online resource by listing more verbs in the comments.