D defs.my
Entry 2 senses Webster, 1913

overt

/(ō*vẽrt" [or] ō"vẽrt)/ · o·vert · IPA /oʊˈvɚt/
01 a. Open to view; public; apparent; manifest. Opposite of hidden.
  1. 1.
    Open to view; public; apparent; manifest. Opposite of hidden.
    Overt and apparent virtues bring forth praise.” Bacon.
  2. 2.
    Not covert; open; public; manifest; as, an overt act of treason.(Law)
    “No person shall be convicted of treason unless on the testimony of two witnesses to the same overt act, or on confession in open court.” — Constitution of the U. S.