outlaugh

v. t. 1. To surpass or outdo in laughing. Dryden. [ 1913 Webster ]

2. To laugh (one) out of a purpose, principle, etc.; to discourage or discomfit by laughing; to laugh down. [ R. ] [ 1913 Webster ]

His apprehensions of being outlaughed will force him to continue in a restless obscurity. Franklin. [ 1913 Webster ]