Fromu(“i”) +cwpan(“cup”) i.e. "cup(-shaped) u".
Used especially by those from south Wales, where both ⟨i⟩ and ⟨u⟩ are pronounced the same (as /ɪ, iː/), in order to distinguish between these letters in spelling.
| radical | soft | nasal | h-prothesis |
|---|---|---|---|
| u gwpan | unchanged | unchanged | hu gwpan |
Note: Certain mutated forms of some words can never occur in standard Welsh.
All possible mutated forms are displayed for convenience.