Webster's Revised Unabridged Dictionary · 1913

Outlaugh

Outlaugh , transitive verb

1.
To surpass or outdo in laughing. — Dryden
2.
To laugh (one) out of a purpose, principle, etc.; to discourage or discomfit by laughing; to laugh down. [Rare]
His apprehensions of being outlaughed will force him to continue in a restless obscurity. — Franklin