au ‧ burn /ˈɔːbən $ ˈɒːbərn/ BrE AmE adjective
[ Date: 1400-1500 ; Language: Old French ; Origin: auborne 'blond' , from Medieval Latin alburnus 'whitish' , from Latin albus 'white' ; probably influenced by brun , an early form of brown ]
auburn hair is a reddish brown colour
—auburn noun [uncountable]