mwyn

• (North Wales) IPA^(key): /muːɨ̯n/
• (South Wales) IPA^(key): /mʊi̯n/
• Rhymes: -ʊɨ̯n

From Middle Welsh mwyn, from Proto-Brythonic *muɨn, from Proto-Celtic *mēnis.

mwyn m (plural mwynau)

1. ore
2. mineral
3. mine

   Synonyms: mwynglawdd, cloddfa

4. sake as for the sake of

• er mwyn (“for the sake of; in order to”)
• mwynglawdd (“mine”)
• mwynwr (“miner”)

From Middle Welsh mywn, from Old Welsh muin, from Proto-Brythonic *muɨn (“beautiful”), from Proto-Celtic *moinis, from Proto-Indo-European *mey-.

Compare Breton moan (“thin”), Irish maoin (“property, riches”); further to Latin mūnis (“obliging”), Old English mǣne (“common”).

mwyn (feminine singular mwyn, plural mwynon, equative mwyned, comparative mwynach, superlative mwynaf)

1. mild
2. gentle, tender

• addfwyn (“meek, gentle”)
• cymwyn (“tender, gentle”)
• mwynder (“gentleness”)
• mwynhau (“to enjoy”)

• R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “mwyn”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies