As defined by A Concise Dictionary of Old Icelandic (Geir Zoëga):
- adv. without using a key (lúka upp lás ~).
Possible runic inscription in Younger Futhark:ᛚᚢᚴᛁᛚᛋᛚᛅᚢᛋᛏ
Also available in related dictionaries:
This headword also appears in dictionaries of other languages closely related to Old Icelandic.