1. To behave or to conduct oneself in an acceptable way: Jim's mother told him to comport himself properly when he goes to his cousin's birthday party.
2. To agree with or to harmonize with: Sally comported herself during the interview with the newspaper reporter regarding her political views.
3. Etymology: from Latin comportare, "to bear, to collect; from com-, "together" + portare, "to carry"; literally, "to carry together"; "to behave oneself in a certain way"; such as, "to comport oneself properly".