You searched for: “the change from m to n has not been explained
A unit related to: “the change from m to n has not been explained
(Latin: Probably from mitulus "mussel", of unknown origin [the change from m to n has not been explained]. It is also said to possibly come from Latin nidificare or nidulari, "to nest"; from nidus "nest", but there is no confirmation for either theory)