For example, he named "Dufþekja", an area on Heimaklettur, Heimaey's highest hill ( 283 meters ), after the slave Dufþakur (the Icelandic version of the Gaelic 'Dubhthach,' Anglicized as 'Duffy') who was said to have thrown himself off Heimaklettur at that point, preferring to take his own life than to let Ingólfur take it.