[OE. acrochen, accrochen, to obtain, OF. acrochier, F. accrocher; à (L. ad) + croc hook (E. crook).]

1. To hook, or draw to one's self as with a hook. [Obs.]

2. To usurp, as jurisdiction or royal prerogatives.

They had attempted to accroach to themselves royal power.

Webster 1913 Dictionary edited by Patrick J. Cassidy