From Wiktionary, the free dictionary
mewn-
- in, into, in-, im-
- mewn- + morio (“to travel by sea”) → mewnforio (“to import”)
- mewn- + plyg (“folded”) → mewnblyg (“introvert”)
- mewn- + pwn (“load, burden”) → mewnbwn (“input”)
Note: Certain mutated forms of some words can never occur in standard Welsh.
All possible mutated forms are displayed for convenience.