I.a mule (the offspring of a horse and she-ass, while mulus is the offspring of an ass and a mare; v. Isid. Orig. 12, 1, 61), esp. used for carrying litters, Dig. 32, 49: “onus duorum burdonum,” Vulg. 4 Reg. 5, 17.
burdo , ōnis (collat. form burdus , i, Acron. ad Hor. C. 3, 27, 7), m., = ,