'aureity' originates from Latin, specifically the word 'aureus' (from 'aurum'), where 'aur-' meant 'gold'.

'aureity' developed via Medieval/Modern Latin forms such as 'aureitas' and through English influence from the adjective 'aureate' to form the modern English noun 'aureity'.

Initially it referred to being 'golden' or 'of gold' in a literal sense; over time it has been used to denote the broader idea of 'the quality of being golden' including color, sheen, or figurative splendour.