pity    akagōngwe, ikigōngwe
(without ~) utwininga, irarīrari
(to have ~ for) kubabarira
En-En dictionary 
without    (without is expressed by a verb in the –ta– negative, e.g. He went without saying Goodbye = Yagiye atavuze N’agasaga)
(~ pity or regarding) utwīninga, irarīrari
En-En dictionary 
impuhwe (im-)     3  class 3
singular: i-,in-
plural: i-,in-
  
mercy (actually the fear to hurt another because you love or pity him)
ikigongwe (ibi-)     4  class 4
singular: iki-,ic-
plural: ibi-,ivy-
  
1. mercy, 2. pardon, forgiveness, 3. pity
akagōngwe     7  class 7
singular: aka-,aga-
  
(no pl.) 1. pity, 2. compassion
irarīrari     3  class 3
singular: i-,in-
  
(no pl.) without pity, without regarding
utwininga    7    without pity, without regarding