add   
manampy
to add to, to make larger or greater in size or number; to help, to assist, to give assistance to. [Richardson 1885]
to add to; to help [Hallanger 1973]
manatotaly
to add, to make up the sum total [Hallanger 1973]
additionner; faire le total [Hallanger 1974]
manovana
to add to, to lengthen (at the bottom or the back) [Hallanger 1973]
mitotaly
to add up to a certain amount [Hallanger 1973]