Where does “Mercius” come from?

Mercius (Latin) comes from Old English Mierce, from Old English mearc, from Proto-West Germanic marku, from Proto-Germanic markō, from Proto-Indo-European morǵ- — edge, boundary, border; frontier, border.

Ancestry of “Mercius”, step by step

StepLanguageWordMeaning
1Old EnglishMiercethe Mercians
2Old Englishmearcmark, sign, character; boundary, limit
3Proto-West Germanicmarkuboundary, border
4Proto-Germanicmarkōborder, boundary; region, area
5Proto-Indo-Europeanmorǵ-edge, boundary, border; frontier, border

Words derived from “Mercius”

Every word from Proto-Indo-European morǵ- →Every word from Proto-Germanic markō →Every word from Proto-West Germanic marku →