Cachinnate

cach·in·nate [kak-uh-neyt]
verb (used without object), cach·in·nat·ed, cach·in·nat·ing.
1. to laugh loudly.
==Origin==
1815-25; < Latin cachinnātus (past participle of cachinnāre to laugh aloud, laugh immoderately), equivalent to cachinn- laugh aloud + -ātus -ate1
==Synonyms==
1. cackle, guffaw.
Category:C
Category:Verbs