'aromatize' originates from Modern English formation combining 'aroma' (from Greek) with the verb-forming suffix '-ize' (from Greek/Latin/French), where 'aroma' meant 'a spice, smell' and '-ize' meant 'to make or to render'.

'aroma' comes from Greek 'arōma' → Late Latin/Medieval Latin 'aroma' → via French 'aromatiser' (verb) and the suffix '-ize' (from Greek -izein through Latin/French) the English verb 'aromatize' developed, and 'aromatized' is its past/past-participle/adjectival form.

Initially, 'aroma' referred to a spice or pleasant smell; over time the verb form evolved to mean 'to give a smell or flavor to something,' which is essentially the same practical meaning used today in 'aromatized.'