dyfrllys

Welsh

Etymology

dwfr (water) +‎ llys (herb, wort).

Noun

dyfrllys m

  1. pondweed (Potamogeton among other genera)

Derived terms

  • dyfrllys America (American pondweed)
  • dyfrllys amryddail (various-leaved pondweed)
  • dyfrllys amryliw (long-leaved floating pondweed)
  • dyfrllys arfor (sea pondweed)
  • dyfrllys bach, dyfrllys eiddil (small pondweed)
  • dyfrllys blaenllym, dyfrllys danheddog, dyfrllys gwrychddail (fennel pondweed)
  • dyfrllys blewynnaidd (hairlike pondweed)
  • dyfrllys coch (red pondweed)
  • dyfrllys Cooper (Cooper's pondweed)
  • dyfrllys crych(ion), dyfrllys crychlyd, dyfrllys danhe (curled pondweed)
  • dyfrllys culddail (lanceolate pondweed)
  • dyfrllys cyferbynddail, dyfrllys cyferbynol (opposite-leaved pondweed)
  • dyfrllys cywasg, dyfrllys camlaswellt (grass-wrack pondweed)
  • dyfrllys dail aflym (bright-leaved pondweed)
  • dyfrllys dail gloyw (bright-leaved pondweed)
  • dyfrllys dail helyg (willow-leaved pondweed)
  • dyfrllys dail llym(ion), dyfrllys meinddail (sharp-leaved pondweed)
  • dyfrllys danheddog (serrated pondweed)
  • dyfrllys disglair (shining pondweed)
  • dyfrllys eiddil, dyfrllys culddail (lesser pondweed)
  • dyfrllys gosgeiddig (graceful pondweed)
  • dyfrllys gwastatgoes (flat-leaved pondweed)
  • dyfrllys hirgoes (long-stalked pondweed)
  • dyfrllys Linton (Linton's pondweed)
  • dyfrllys Loddon, dyfrllys rhwydog (Loddon pondweed)
  • dyfrllys llydanddail (broad-leaved pondweed)
  • dyfrllys meinddail, dyfrllys meinddail (slender-leaved pondweed)
  • dyfrllys rhubanog (ribbon-leaved pondweed)
  • dyfrllys Shetland, dyfrllys yr Ynysoedd (Shetland pondweed)
  • dyfrllys Sweden (Swedish pondweed)
  • dyfrllys tramor (Cape-pondweed, water hawthorn)
  • dyfrllys trydwll (perfoliate pondweed)
  • dyfrllys y gors (bog pondweed)
  • dyfrllys y gors galchog, dyfrllys y fignen (fen pondweed)

Further reading

  • Cymdeithas Edward Llwyd (2018) “Y Bywiadur”, in Llên natur[1], retrieved 16 February 2025.
  • D. G. Lewis, N. Lewis, editors (2005–present), “dyfrllys”, in Gweiadur: the Welsh–English Dictionary, Gwerin
  • R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “dyfrllys”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies