guidebook
"arweinlyfr" means "guidebook" in Welsh (masculine noun). Pronounced /arˈwei̯nləv(ə)r/. Mutation forms: Treiglad Llaes → harweinlyfr.
In Welsh, the first letter of "arweinlyfr" changes depending on the grammatical context. These are the mutated forms:
| Mutation | Form |
|---|---|
| Base form | arweinlyfr |
| Treiglad Llaes | harweinlyfr |
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