Someone or something (mang-) causes someone or a part of the body (-en) to be numb and stiff.
Mangrapid anak ko a machibaba dyaken, ta marahmet.
My child who piggybacks on me causes me to be numb and stiff, because he is heavy.
Rapiden naya yaken rara kwaya kayo.
My cargo, that is the wood, causes me to be numb and stiff.