English

ethnodietary

From ethno- + dietary.

Ancient Greek ἔθνος ‘a company, later a people, nation’

Ancient Greek διαιτάω ‘to treat, handle’

Ancient Greek δῐ́αιτα ‘way of living, living space’

Latin diaeta ‘diet’

Medieval Latin diētārium ‘book prescribing diet’

Today it means

adj Relating to the dietary practices of specific ethnic groups.

Language periods are conventional ranges, not dates for this word.

Etymograph / ethnodietary