Welsh edit

Etymology edit

slefr (slaver, spit) +‎ -en

Noun edit

slefren fôr f (plural slefrod môr, not mutable)

  1. jellyfish
    Synonym: cont y môr

References edit

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