Where does “ʔux̌ʷcyic” come from?

ʔux̌ʷcyic (Lushootseed) comes from Navajo -yi-, from Proto-Bantu jɪ́- — Class 9 subject concord; Class 9 object concord.

ʔux̌ʷcyic (Lushootseed): go after it for me (first-person benefactive form of ʔux̌ʷc)