We don't have synonyms for sasswood yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are password, basswood and salmwood.
(n) :
Alternative form of sassywood. [A form of trial by ordeal in Liberia, typically involving a suspect drinking a poisonous concoction made from the bark of the ordeal tree Erythrophleum guineense, Erythrophleum ivorense, or Erythrophleum suaveolens (called sassy bark); by extension, other forms of trial by ordeal such as applying a heated machete to the suspect's legs, or dipping the suspect's hand into hot oil.]
(n) :
Alternative form of sassywood. [A form of trial by ordeal in Liberia, typically involving a suspect drinking a poisonous concoction made from the bark of the ordeal tree Erythrophleum guineense, Erythrophleum ivorense, or Erythrophleum suaveolens (called sassy bark); by extension, other forms of trial by ordeal such as applying a heated machete to the suspect's legs, or dipping the suspect's hand into hot oil.]