ˁbd - to work (a field), to cultivate, to produce
(DUL 139)
PCS
*ˁbd - to serve (?), to work, to make
(Huehnergard 1995: 276; Kogan 2015: 380)
The meaning “to serve” is probably the original one (cf. Huehnergard 1995:276);
A denominative verb from *ˁabd- rather than vice versa (Kogan 2015: 181)