I have a couple of examples of degemination and prenasalization of the same geminate affricate/stop in Calabrian:
- "menzu", which should have evolved from "mediu(m)" through "mezzu", or maybe this assumption is just because I'm Italian and want to reduce this Calabrian word to its Italian counterpart "mezzo";
- "mentu", which Sicilian Wiktionary links to Latin "mitto", which would be Italian "metto"; the other (to me) strange evolution is the "i" becoming an open "e" /ɛ/, which in Sicilian normally doesn't happen, but that is another matter.
So I ask: how common is the phenomemon of an afficate/stop both degeminating and prenasalizing, in Sicilian specifically but also more generally in other languages? And are the above etymologies correct?