eigin Old Norse word can mean:
eigin n. [Ulf. aigin = οὐσία], one’s own, of property; sitt eigin, his own, Stj. 448; girnask annars eigins, Hom. 54, Fms. ix. 453, v. l., Grág. ii. 191 (rare), vide eign.
eigin II. a seed, Edda (Gl.); cp. the Norse iend or ejende = the first sprouts of corn, Ivar Aasen.