he etymology

Middle English word he comes from Proto-Indo-European *ḱoy-, Proto-Indo-European *ḱe, Proto-Indo-European *ki-, and later Proto-Germanic *hiz (This.)

Detailed word origin of he

Dictionary entry	Language	Definition
*ḱoy-	Proto-Indo-European (ine-pro)
*ḱe	Proto-Indo-European (ine-pro)
*ki-	Proto-Indo-European (ine-pro)
*hiz	Proto-Germanic (gem-pro)	This.
hē	Old English (ang)
he	Middle English (enm)	He (third-person singular masculine subject pronoun).

Descendants of *ḱoy-: a civil eme halloo halow hamely hamme heer henne heonenen her-for here hewe hidir hire hiren hit hither hom homly homstal hoo hyo sche ȝho
Descendants of *ḱe: a- ackowen ashore burde conscience enow her imete imunde ireden ishaft mane minde schape shap y- yclept ydrad ylike ymunde ypeynted ȝare ȝea
Descendants of *ki-: bedaggen befilen beleden benethe beshinen beswiken betechen betellen betynen bewepen bi bi cause bicaren bikerven bithenchen biwenden biwitten blissen ha haile halsien helen helthe holi unhal