I cannot translate from English to French although I could translate from French to English, which means I'm only halfway there to being an international player.
And this example rather suggests the word was in reasonably wide usage already in spoken English because this quote is from a translation of a French text.
I was to do the French translation but I'm tired these days--I'm afraid of falling, I'm so heavy and clumsy--like a broken roly-poly that can't stand up straight.
So he then had to translate his jokes from French into English, and he has a lot of thoughts on the difference in audiences between French audiences and English audiences.
245) In Secret: The French translation for this chapter title is En Secret, meaning " solitary confinement." See the Introduction for a broader discussion of forms of state-sponsored secrecy in the novel.
245) In Secret:本章标题的法语翻译是En Secret,意思是“单独监禁”。有关小说中国家资助的保密形式的更广泛讨论,请参阅引言。