laetifer Save DMLBS Du Cange laetifer, laetiferus v. letifer, letiferus LAETIFER, Afferens lætitiam, in Actis SS. Junii tom. 5. pag. 280. de SS. Arialdo et Herlembaldo : Vox Lætifera, id est, lætitiæ plena, loco nostro insonuit.