Etymology

örlig from Old Swedish örligh, örlygh, örlögh, örlighe, örleghe, örlöghe and örlog from Old Swedish örlogh, örloghe, corresponding to Icelandic ørlygi ‎(“fight”), Danish ørlog ‎(“naval warfare”), from Middle Low German orlich, Dutch oorlog, Old High German urliugi ‎(“war”). In Swedish this lives on as the prefix örlogs-, describing naval warfare.