Grieve, RUE, PITY, LAMENT, and AIL are all words that can be used to describe the term 'cause to feel sorrow'. GRIEVE is a verb meaning to feel or express deep sorrow or regret. RUE is a verb meaning to feel deep sorrow or regret for something done or experienced in the past. PITY is a noun meaning a feeling of sorrow and compassion caused by the suffering or misfortune of others. LAMENT is a verb meaning to express sorrow or regret for something. AIL is a verb meaning to suffer from a physical or mental affliction. All of these words can be used to describe the act of causing someone to feel sorrow.