hlaupársdagur

== Icelandic == === Etymology === From hlaupár (“leap year”) +‎ dagur (“day”). === Noun === hlaupársdagur m (genitive singular hlaupársdags, nominative plural hlaupársdagar) leap day ==== Declension ==== === Further reading === “hlaupársdagur” in the Dictionary of Modern Icelandic (in Icelandic) and ISLEX (in the Nordic languages)