Synonyms for Remand (same or very similar meaning)
WordNet sense 1 (lock up or confine, in or as in a jail):
immure, imprison, incarcerate, jail, jug, lag, gaol, put away, put behind bars
WordNet sense 2 (refer (a matter or legal case) to another committee or authority or court for decision):
remit, send back
From the ODE community, based on WordNet
add/edit