awning (n.)

"movable roof-like covering of canvas for a window, etc., as a protection from the sun's rays," 1624, origin uncertain (first recorded use is by Capt. John Smith), perhaps from Middle French auvans, plural of auvent "a sloping roof," "itself of doubtful etym[ology]" (OED). A nautical term only until sense of "cover for windows or porch" emerged 1852.