cachinnatio
From LSJ
To χάρις ὑμῖν οὕτω τίθησιν κτλ. → Thus he writes joy to you all, etc. (Cramer's Catena on 1 Thessalonians 1.1)
Latin > English (Lewis & Short)
căchinnātĭo: ōnis, f. id.,
I a violent laughing, immoderate laughter: sine ullā suspitione nimiae suspitionis, Auct. Her. 3, 14, 25: ut si ridere concessum sit, vituperetur tamen cachinnatio, Cic. Tusc. 4, 31, 66.
Latin > French (Gaffiot 2016)
căchinnātĭō, ōnis, f. (cachinno), action de rire aux éclats, rire fou : Cic. Tusc. 4, 66.