Middle English word comen comes from Proto-Indo-European *gʷémt (To arrive. To step, to take a step.)

Detailed word origin of comen

Dictionary entry	Language	Definition
*gʷem-	Proto-Indo-European (ine-pro)	to go, come, to come, go, come, go
venire	Latin (lat)
come	Tocharian B (txb)
*gʷémt	Proto-Indo-European (ine-pro)	To arrive. To step, to take a step.
*gʷegʷóme	Proto-Indo-European (ine-pro)	To have the feet planted, to stand steady.
*kwemaną	Proto-Germanic (gem-pro)	To come.
cuman	Old English (ang)	To come.
ġecumen	Old English (ang)
cumen	Middle English (enm)