[Alteration of saucy.] sas'si·ly adv., sas'si·ness n.
sas·sy 2 (sās'ē) n.
pl.sas·sies A western African tree (Erythrophleum suaveolens) of the pea family, having bark that yields a poison and wood that is used for construction. Also called sasswood, sassy bark.
[Of West African origin; akin to Twi `-sésé, plane tree, Ewe séséwú, timber tree, and Ga (Niger-Congo language of Ghana) sèsè, kind of tree.]