decrease   
miandalana
to increase or diminish by degrees, to increase or decrease gradually, to abate gradually; to be arranged, to be in order. [Richardson 1885]
mietry
to decrease in honor, to go down in rank or status [Hallanger 1973]
mihena
to lessen, to shrink, to diminish, to decrease, to reduce, to assuage. [Richardson 1885]
mitambotsotra
to sink, to slip down, to decrease [Hallanger 1973]