laugh at Copy link Outline 1. rīdeo, 2 (either pleasantly or scornfully)2. dērīdeo, 2 (to l. to scorn, q. v. also with acc.)3. irrīdeo, 2 (to mock • laugh at: 1. rīdeo, 2 (either pleasantly or scornfully): to l. heartily at any one's jokes, alicujus joca satis r., Cic. Att. 14, 14, init.: Jove l.s at lovers' perjuries, perjuros r. amantes Jupiter, Prop. 2, 16, 47: to l. at one with good reason, aliquem merito r., Quint. 8, 3, 19: Hor. 2. dērīdeo, 2 (to l. to scorn, q. v. also with acc.): v. to deride. 3. irrīdeo, 2 (to mock: same constr.): v. to ridicule, mock.