deteriorate   ▶ gufūtāna, gusērūka, kwōnōnekara, gushānyūka, gupfāpfāna, kubora
(to cause to) gusērūra
En-En dictionary 
gusērūra (-sērūye)     v   ▶ 1. to cause to fade, 2. to cause to deteriorate
kwōnōnekara (-ōnōnekaye)     v   ▶ to be spoiled, to deteriorate
gupfāpfāna (-pfāpfānye)     v   ▶ to deteriorate
gufūtāna (-fūtānye)     v   ▶ 1. to be wicked, 2. to have bad habits (after having been good), 3. deteriorate, 4. to go backwards in possessions or habits
gusērūka (-sērūtse)     v   ▶ 1. to degrade, deteriorate, 2. to fade
gushānyūka (-shānyūtse)     v   ▶ to deteriorate, come apart, to get rutted or pitted from rain