si(“buzz, hum, murmur”) +-ol.
sïol (feminine singularsïol,pluralsïol,notcomparable,not mutable)
- buzzing,murmuring,hissing,rustling
- sibilant
- Synonym:sisiol
- R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke,et al., editors (1950–present), “sïol”, inGeiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies