rhyn

From Middle Welsh rynn, rin, from Proto-Celtic *rinnos (“fast”), from Proto-Indo-European *h₃reyH- (“to flow, run”). For parallels in the semantic evolution, compare English fast, which had the reverse development — going from "firm" to "quick".

• (North Wales) IPA^(key): /r̥ɨ̞n/
• (South Wales) IPA^(key): /r̥ɪn/
• Rhymes: -ɨ̞n

rhyn (feminine singular rhyn, plural rhynion, equative rhynned, comparative rhynnach, superlative rhynnaf)

1. rigid, stiff

   Synonym: anhyblyg

2. rough, turbulent, fierce
3. cold, chilly

   Synonyms: oer, rhynnaidd

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