weight    uburiba
(to lose) kunamba
(to lose a lot of ~) kugōgōra
En-En dictionary 
kwōroha (-ōroshe)     v    1. to be easy, to be simple, 2. to be soft, 3. to be light (in weight)
guhwahuka (-hwahutse)     v    to be light (in weight)
kugōgōra (-gōgōye)     v    to get very thin, lose a lot of weight
kunamba (-namvye)   v    1. to struggle, have a difficult life, 2. to lose weight
guhwahura (-hwahuye)     v    to make light (weight)
uburiba   8  class 8
singular: ubu-
  
weight
light-weight    (to be) guhwahuka, kwōroha
En-En dictionary 
lose    guhōmba, guta, gutakaza
(by death) gupfīsha
(by death, one's child) gupfusha
(interest) gutenzēkanya, gutezēkanya, gutēzūra
(one another) gutāna
(one's head) gucika ivutu, kuzimagirika
(one's husband or wife by death) gupfākara
(one's zeal or enthusiasm) kudehūra
(original force) gutītūra
(to cause to) gutēsha
(to ~ elections) gutindwa amatora
(to ~ reason) gusara
(to make another ~ his case) kuzingirikira
(one who has lost everything in trial) imvumure
(weight) kugōgōra
En-En dictionary