"theme, predominant feature," 1848, from French motif "dominant idea, theme" (see motive).
In literature, art, or music, a recurring set of words, shapes, colors, or notes. In the poem “The Raven,” by Edgar Allan Poe, for example, the word nevermore is a motif appearing at the end of each stanza. Likewise, the first four notes of the Fifth Symphony of Ludwig van Beethoven are a motif that is developed and reshaped throughout the work.
The standard graphical user interface and window manager from OSF, running on the X Window System.