To speak our language these days with enlightenment is to harbor an ongoing sense that there are words and expressions that come to mind but that, upon reflection, we shouldn’t utter. I refer not only to terms like the N-word — an easy case for self-censorship — but also to an eternally morphing assemblage of locutions that pedants, our kids, human resources and the Twitter herd say we shouldn’t use anymore. Terms that are hardly egregious but maybe just aren’t the best look.