An Etymological Dictionary of the German Language/Raute
Raute (1.), f., ‘rue,’ from the equiv. MidHG. rûte, OHG. rûta, f. This, like the equiv. Du. ruit, is usually considered to be borrowed from Lat. rûta (comp. Ital. ruta); yet AS. rûde, ‘rue,’ might prove that the G. word is cognate with Lat. rûta. E. rue, from Fr. rue.
Raute (2.), f., ‘quadrangle, square,’ from MidHG. rûte, f., ‘lozenge in heraldry, pane’ (hence Du. ruit, ‘square’). As to OHG. *rûta for *hrûta, equiv. to Aryan krûtâ, klrûtâ, see vier.