worried    (to be) kwīganyira, kwīkānga
En-En dictionary 
kwīririra (-īririye)     v    1. to weep for oneself, 2. to be worried
kwīkānga (-īkānze)     v    to fear, to be worried
kwīganyira (-īganyiye)     v    1. to be anxious, worried, 2. to be grieved