> What? I'm not sure I know what "old-fashioned word" the author is talking about...

I think she means "put up" as in "gave in", and the word is "prostitutes", because of course consenting, adult women cannot choose who they have sex with without This Author's Holy Writ.

It's just sexism on behalf of the author, it undermines her whole message (which, as far as I can tell, isn't anything in particular?) and strikes me as extremely distasteful.