to boast
"bostio" means "to boast" in Welsh (verb). Pronounced /ˈbɔsdjɔ/. Mutation forms: Treiglad Meddal → fostio, Treiglad Trwynol → mostio.
In Welsh, the first letter of "bostio" changes depending on the grammatical context. These are the mutated forms:
| Mutation | Form |
|---|---|
| Base form | bostio |
| Treiglad Meddal | fostio |
| Treiglad Trwynol | mostio |
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