Sentence:  An if it please thee! why, assure thee, Lucius, / 'Twill vex thy soul to hear what I shall speak; / For I must talk of murders, rapes, and massacres, / Acts of black night, abominable deeds, / Complots of mischief, treason, villainies, / <WSD>Ruthful</WSD> to hear, yet piteously perform'd: 
Meaning of the word marked with <WSD> tags:  Causing pity; piteous.