Where does “Knox” come from?

Knox (Cebuano) comes from English Knox, from Scottish Gaelic cnoc, from Old Irish cnocc, from Proto-Celtic *knukkos.

Ancestry of “Knox”, step by step

Step	Language	Word	Meaning
1	English	Knox	Ellipsis of Knox Box
2	Scottish Gaelic	cnoc	hill, hillock, knoll, eminence; heel kibe;...
3	Old Irish	cnocc	hill; lump; swelling
4	Proto-Celtic	*knukkos	—

Knox — Etymology, Origin & Word History | Etymology Explorer