Arthur

[ahr-ther] /ˈɑr θər/
noun
1.
Chester Alan, 1830–86, 21st president of the U.S. 1881–85.
2.
legendary king in ancient Britain: leader of the Knights of the Round Table.
3.
a male given name.
British Dictionary definitions for Arthur

Arthur

/ˈɑːθə/
noun
1.
a legendary king of the Britons in the sixth century ad, who led Celtic resistance against the Saxons: possibly based on a historical figure; represented as leader of the Knights of the Round Table at Camelot
2.
Chester Alan. 1830–86, 21st president of the US (1881–85)
3.
(Austral & NZ, informal) not know whether one is Arthur or Martha, to be in a state of confusion
Word Origin and History for Arthur

masc. proper name, from Medieval Latin Arthurus/Arturus, from Welsh arth "bear," cognate with Greek arktos, Latin ursus (see Arctic).