áttján

== Old Norse == === Etymology === From Proto-Germanic *ahtōutehun. Compare Old English eahtatīene, Old High German ahtozehan. === Numeral === áttján (cardinal number, older form) alternative form of átján: eighteen === Further reading === Zoëga, Geir T. (1910), “áttján”, in A Concise Dictionary of Old Icelandic, Oxford: Clarendon Press, page 39; also available at the Internet Archive