From duine (“man”) + -ail (adjectival suffix). Possibly from Old Irish duinemail (“humane, liberal”), which is equivalent in formation but slightly different in meaning, as Old Irish duine meant “human being”, with no specification of sex or gender. Compare Irish duiniúil (“human, natural, kindly”, adjective).
|Scottish Gaelic mutation|
|Note: Some of these forms may be hypothetical. Not every
possible mutated form of every word actually occurs.