Sentence:  [W]hile all mourned and honoured the dead, thou hast lived to merit our hate and <WSD>execration</WSD>—lived to unite thyself with the vile tyrant who murdered thy nearest and dearest— ... 
Meaning of the word marked with <WSD> tags:  An act or instance of cursing; a curse dictated by violent feelings of hatred; an imprecation; an expression of utter detestation.