cyfresol

== Welsh == === Etymology === From cyfres +‎ -ol === Adjective === cyfresol (feminine singular cyfresol, plural cyfresol, equative mor gyfresol, comparative mwy cyfresol, superlative mwyaf cyfresol) serial Synonym: cyfres ==== Derived terms ==== cyfresoledd (“seriality”) llofrudd cyfresol (“serial killer”) === Mutation === === Further reading === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “cyfresol”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies