approve    kwemera
En-En dictionary 
kwemera (-emeye)     v    1. to be willing, to agree to, 3. to admit, to acknowledge, to confess, concur, 4. to accept, 5. to approve, 6. to believe, to believe in
disapprove    (to look at another with disapproval) kurāba igitsūre
(showing disapproval on one's face) ibitsongotsingo, or, ibisingosingo
En-En dictionary