'two-hued' originates from English by combining the numeral 'two' and the adjectival/past-participial form 'hued' (from the noun 'hue', meaning 'color').

'two' comes from Old English 'twā' and 'hued' derives from 'hue', which traces to Old English 'hiw'/'hiwian' meaning 'color'; these elements combined in Modern English to form 'two-hued'.

Initially it simply denoted the literal combination of 'two' + 'hued' ('having two hues'); this basic meaning has persisted into current usage as 'having two colors or shades'.