argue    (the liking to ~) amahāne
(to ~) guhārīra, kuja impāri
(to ~ about) gukiranira
(to ~ and swear that you're right) gutara
En-En dictionary 
guhāririza (-hāririje)     v    1. to speak against, 2. to scold vehemently, 3. to cause to argue
kuja impāri (-giye)   phr    to argue
gutara (-taze)     v    1. to be late (of rains), to not fall, 2. to put near fire to dry, scorch or roast, 3. to put beer in a warm place, 4. to argue and swear that you're right, 5. to take one's case to chief knowing you're right
gukiranira (-kiraniye)     v    1. to argue about, discuss, 2. to try to persuade
maintain    kugumya, kugumiriza
(one's position, argue and swear that you're right) gutara
En-En dictionary 
amahāne    5    1. cheekiness, 2. argument, liking to argue, 3. quarrel
guhārīra (-hārīriye)     v    1. to argue, 2. to discuss, 3. to quarrel
 argue found in: Kirundi II (Grammar)
chapter 70   Vocative