As defined by A Concise Dictionary of Old Icelandic (Geir Zoëga):
- a. difficult, hard, troublesome; oss verðr erfitt at þjóna Norðmönnum, it will be hard for us; Guðrún var erfið á gripakaupum, G. was troublesome (extravagant) in buying finery; hvíldist Helgi, því at honum var orðit erfitt, for he was exhausted; þó at honum væri málit erfitt, though he spoke with difficulty.
Possible runic inscription in Younger Futhark:ᛁᚱᚠᛁᚦᚱ
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This headword also appears in dictionaries of other languages closely related to Old Icelandic.