 However, this may not say anything about the origin of the name "Arthur", as "Artōrius" would regularly become "Art(h)ur" when borrowed into Welsh.Another commonly proposed derivation of "Arthur" from Welsh "arth" "bear" + "(g)wr" "man" (earlier "*Arto-uiros" in Brittonic) is not accepted by modern scholars for phonological and orthographic reasons.Notably, a Brittonic compound name "*Arto-uiros" should produce Old Welsh "*Artgur" (where "u" represents the short vowel /u/) and Middle/Modern Welsh "*Arthwr", rather than "Arthur" (where "u" is a long vowel /ʉː/).