trewyn

Welsh

Etymology 1

Back-formation from athrywynu and ethrywynu (to reconcile).

Verb

trewyn (first-person singular present trewynaf)

  1. alternative form of trewynu (to arbitrate, to mediate)

Further reading

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

Etymology 2

Nominalisation of etymology 1, a calque of English loosestrife, from Ancient Greek λυσιμάχειον (lusimákheion), as if from λύσις (lúsis, loosening) + μάχη (mákhē, battle, strife).

Noun

trewyn m (collective, singulative trewynyn)

  1. loosestrife (Lysimachia)
    1. especially yellow loosestrife (Lysimachia vulgaris)
      Synonyms: milwyr melynion, llysiau'r milwyr melynion
    2. yellow pimpernel (Lysimachia nemorum)
      Synonym: gwlydd melyn Mair
Derived terms

Further reading

  • Cymdeithas Edward Llwyd (2016) “Y Bywiadur”, in Llên natur[1], retrieved 25 May 2025
  • D. G. Lewis, N. Lewis, editors (2005–present), “trewyn”, in Gweiadur: the Welsh–English Dictionary, Gwerin
  • R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “trewynyn”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies

Mutation

Mutated forms of trewyn
radical soft nasal aspirate
trewyn drewyn nhrewyn threwyn

Note: Certain mutated forms of some words can never occur in standard Welsh.
All possible mutated forms are displayed for convenience.