'aromaticness' originates from English, specifically the word 'aromatic' combined with the suffix '-ness', where 'aromatic' ultimately comes via French 'aromatique' from Greek 'arōma' which meant 'spice' or 'sweet smell'.

'aromatic' entered English from French 'aromatique' (or Latin 'aromaticus'), which in turn derived from the Greek word 'arōma' and adjectival form 'arōmatikos'; the English noun 'aromaticness' developed by adding the noun-forming suffix '-ness' to 'aromatic'.

Initially, related words referred specifically to spices or pleasant smells ('arōma' = 'spice, sweet smell'), but over time the sense broadened to 'having a pleasant smell' and in scientific contexts to the modern chemical sense of 'aromaticity'; 'aromaticness' now denotes either the quality of being fragrant or the degree of aromatic character in chemistry.