'azurean' originates from Modern English, specifically formed from the word 'azure' plus the adjectival suffix '-an'; 'azure' itself originates from Old French, specifically the word 'azur', where 'azur' meant 'lapis lazuli (deep blue)'.

'azure' passed into English from Old French 'azur', which came via Medieval Latin from Arabic 'lazaward' (originally Persian 'lajvard', the name of the gemstone lapis lazuli); the Modern English adjective 'azure' gave rise to the derived formation 'azurean'.

Initially associated with the gemstone lapis lazuli and its deep blue color, the term's use shifted to denote the color itself; 'azurean' developed to describe things of that blue color (sky-like blue).