Anahata, that's a widespread myth about the English Horn's name. It would be plausible if anglé meant "angled" in French, but it doesn't and never has.

Another theory, by the way, is that because the cor anglais resembled the horns played by putti and other angels in renaissance art, the word was originally German "engellisches Horn", meaning "angelic horn." This is more plausible, because "engellisch" was also a fairly common alternative spelling for the adjective "englisch," "English."

Historically, the name "english horn" first turns up in German and Austrian scores...but written in Italian as corno inglese, which can't plausibly mean either "angled" or "angelic." So anyone who posits either a French or a German etymology has a built-in challenge.