to quarrel with one's own shadow
to annul
to cancel
to destroy
to disfigure
to eliminate
to eradicate
to exterminate
to nip
to null
to nullify
to override, -rode, -ridden
to override, overrode, overridden
to overwhelm
to put to rout
to repeal
to reverse
to rout
to set aside
to undo, undid, undone