Synonyms for Chittimwood (same or very similar meaning)
WordNet sense 1 (shrubby tree of the Pacific coast of the United States; yields cascara sagrada):
bearberry, bearwood, chittamwood, cascara buckthorn, Rhamnus purshianusWordNet sense 2 (deciduous tree of southeastern United States and Mexico):
shittimwood, false buckthorn, black haw, Bumelia lanuginosaFrom the ODE community, based on WordNetadd/edit