The Collaborative International Dictionary of English v.0.48:
Justiciar \Jus*ti"ci*ar\, n. Same as Justiciary. [1913 Webster]WordNet (r) 3.0 (2006):
justiciar n 1: formerly a high judicial officer [syn: justiciar, justiciary]Bouvier's Law Dictionary, Revised 6th Ed (1856):
JUSTICIAR, or JUSTICIER. A judge, or justice the same as justiciary.