trettidel

== Norwegian Nynorsk == === Alternative forms === trettiandedel === Etymology === From tretti +‎ del. === Noun === trettidel m (definite singular trettidelen, indefinite plural trettidelar, definite plural trettidelane) (fractional number) a thirtieth (1⁄30) === References === “trettidel” in The Nynorsk Dictionary.