'pro-age' originates from English, formed by the prefix 'pro-' (which comes from Latin 'pro', where 'pro' meant 'for') and the noun 'age' (which comes ultimately from Old French 'aage' and Latin 'aetas', where 'aet-' meant 'age').

'pro-age' is a modern English compound formed in the late 20th century by joining 'pro-' and 'age' to express being 'for' or 'in favor of' age; it gained currency in beauty, social, and cultural contexts as a counter to 'anti-aging'.

Initially the elements simply meant 'for' + 'age', but over time the compound came to mean specifically 'favoring natural aging or positive attitudes toward aging' rather than a literal endorsement of age alone.