Based on some of the numbers given in quotes of @LаngLаngС answer:
Yes, about one half percent (0.5%) more French were learning German in 1942
Population Paris (city proper) 1936: 2,829,746
Population France 1931, 1946, 1950: 41,524,000, 40,125,230, 41,647,258
The Berlitz language school increased its enrollments from 939 adult students of German ...
I would like to read more about what it actually mean to the people at that time.
This link may be useful to you:
Quelle est la signification du mot « Paratge » ?
It quotes a dozen definitions of the word, and a half-dozen examples, and five paragraphs of introduction.
According to the introduction it's used to mean "noble birth", "moral virtue", and "...