'non-gastronomic' originates from the prefix 'non-' meaning 'not' and 'gastronomic' from Greek 'gastronomikos', where 'gastro-' meant 'stomach' and '-nomikos' meant 'pertaining to law or custom'.

'gastronomikos' transformed into the French word 'gastronomique', and eventually became the modern English word 'gastronomic'. The prefix 'non-' was added to form 'non-gastronomic'.

Initially, 'gastronomic' meant 'pertaining to the stomach or food', and 'non-gastronomic' evolved to mean 'not related to food or gastronomy'.