föstumatrnafnorðkarlkynföstu-matrm. fast-day food, Sturl. i. 139, Fms. iv. 283, v. l.Skammstafanir og tilvitnanirm.karlkyn (e. masculine)v. l.varia lectio.Sturl.Sturlunga saga. (D. I.)Fms.Fornmanna sögur. (E. I.)