outlaugh
/ˌaʊtˈlɑːf/ /ˌaʊtˈlaf/verb
1 [with object] To laugh down, deride, ridicule. Now rare.
2 [with object] To surpass or outdo in laughing. rare.
Origin
Early 17th century; earliest use found in William Camden (1551–1623), historian and herald. From out- + laugh.