till   
ambaraka
until, till. This word is much used with the verbal nouns in f, the weak syllable -ka dropping out, and the f changing to p, as ambarapandehako, from ambaraka and fandeha. Ambaratonga, a ladder, is also derived from the same. [Richardson 1885]
miasa
to till, to labour [Richardson 1885]
to till the soil [Hallanger 1973]