Why was "tantrum" trending last week?
c.1600, from French réintegration (15c.) or directly from Medieval Latin reintegrationem; see reintegrate + -ion. Also in classically correct form redintegration.
reintegration re·in·te·gra·tion (rē'ĭn-tĭ-grā'shən)n.
Restoration to a condition of integration or unity.
The return to well-adjusted functioning following mental illness.