SamTgJ Num4:27 :ותמנון עליהון במטר ית כל מסבלון‏ : you should assign all their burden to them as a watch
See the entire entry for maṭṭar, maṭṭrā n.m. prison, watch

SamTgJ Num4:27 : לכל מסבלון ולכל תשמישון‏ : for all their burden and all their job
See the entire entry for msbl n.m. burden