also re-orientation, "action or process of reorienting, a fresh orientation," 1893, from re- "again, anew" + orientation.

also re-orient, 1897, transitive, "give a new direction to;" 1937, intransitive, "adjust (to), come to terms with, adopt a new direction;" from re- "back, again" + orient (v.) or perhaps a back-formation from reorientation. Related: Reoriented; reorienting. Alternative reorientate is recorded from 1913. Tennyson uses reorient as an adjective, "arising again or anew."