As defined by A Concise Dictionary of Old Icelandic (Geir Zoëga):
eldr Old Icelandic word can mean:
- (-s, -ar), m. fire; taka eld, drepa (upp) eld, to strike fire: kveikja (upp) eld, to light a fire; bregða (koma, skjóta) eldi í e-t, láta (leggja) eld í e-t, to set fire to, to set on fire; e. varð lauss ok lék skjótt, a fire broke out and spread rapidly; e. hraut af sverðum þeirra, sparks of fire flew from their swords.
- pp. grown old, worn by age; kvazt e. vera mjök frá úfriði, said that he was too old for fighting.
Possible runic inscription in Younger Futhark:ᛁᛚᛏᚱ