comport

With its prefix com-, "with", the Latin word comportare meant "to bring together". So it's easy to see how in English we could say that a college's policy comports with state law, or that a visit to your parents doesn't comport with your other weekend plans, or that your aunt and uncle won't listen to anything on TV that doesn't comport with their prejudices. The "behave" sense of the word comes through French, and its essential meaning is how a person "carries" him- or herself. So you may say, for instance, that your 17-year-old comported himself well (for once!) at the wedding reception, or that an ambassador always comports herself with dignity—that is, her comportment is always dignified—or that your class comported itself in a way that was a credit to the school.