risus: loud, roaring laughter, cachinnatio (Cic., Tusc., 4, 31, 66); cachinnus: to raise or excite laughter, risum movere, concitare, excitare; in anyone, alicui; risum cielicere (of persons or things which make one laugh: ☞ risus alicui dare or praebere is rare): risum alicui excutere (purposely to cause one to laugh): to endeavor to raise or excite laughter, risum captare: to split, burst, or die with laughter, risu rumpi, corruere, emori.