Neither shall he go in
bow' (bo)
to go or come (in a wide variety of applications)
to any dead
muwth (mooth)
causatively, to kill
body
nephesh (neh'-fesh)
a breathing creature, i.e. animal of (abstractly) vitality; used very widely in a literal, accommodated or figurative sense (bodily or mental)
nor defile
tame' (taw-may')
to be foul, especially in a ceremial or moral sense (contaminated) -- defile (self), pollute (self), be (make, make self, pronounce) unclean, utterly.
himself for his father
'ab (awb)
father, in a literal and immediate, or figurative and remote application) -- chief, (fore-)father(-less), patrimony, principal. Compare names in Abi-.
or for his mother
'em (ame)
a mother (as the bond of the family); in a wide sense (both literally and figuratively) -- dam, mother, parting.