in loco parentis

from WordNet (r) 3.0 (2006)
in loco parentis
    adv 1: in place of the parents; "we had to punish this child in
           loco parentis"
    
from Bouvier's Law Dictionary, Revised 6th Ed (1856)
IN LOCO PARENTIS. In the place of a parent; as, the master stands towards 
his apprentice in loco parentis. 
    

[email protected]