zlacker

In english 'Doctor' is a word that at one time exclusively did refer only to males. A word used for females was 'Doctress'

http://doctordoctress.org

>>err4nt+(OP)
That could be relevant. Also the word "actor", with the same ending, is sometimes (by some newspapers, for example) reserved for men.

Sometimes a similar trick anecdote is told about a "German". There's a suspicion that the ending "man" in "German" primes the listener to imagine a man.