áttrǿðr

== Old Norse == === Etymology === From átta +‎ -rǿðr. Compare nírǿðr, from níu +‎ -rǿðr. === Adjective === áttrǿðr measuring eighty (fathoms, ells) eighty years old, octogenarian c. 1130, Ari Þorgilsson, Íslendingabók ==== Declension ==== === Further reading === Zoëga, Geir T. (1910), “áttrœðr”, in A Concise Dictionary of Old Icelandic, Oxford: Clarendon Press, page 38; also available at the Internet Archive