In English, I can say both ‘year of birth‘ and ‘birth year‘, so can I feel free to swap related words in French deleting ‘de’, for example, from ‘année de naissance‘ to ‘naissance an‘?
Demandé par: aspermag
You can’t do that in French. Année de naissance is the only option.
The first point is that naissance is a noun, so obviously, it cannot be used as an adjective.
Secondly, the idiom to translate birth year is « année de naissance » so it is what you have to use as @vc74 says.
Finally, if you really want to have an adjective related to birth, even if it has not this meaning, it would be « native ».
So the closest litteral translation of birth year could be « année native ».