Middle English word girden comes from Proto-Indo-European *gʰerdʰ-, Old English gyrd, and later Proto-Germanic *gerdaną (To gird.)

Detailed word origin of girden

Dictionary entry	Language	Definition
*gʰerdʰ-	Proto-Indo-European (ine-pro)
gyrd	Old English (ang)
*gerdaną	Proto-Germanic (gem-pro)	To gird.
ȝeard	Middle English (enm)
*gʰr̥dʰye/o-	Proto-Indo-European (ine-pro)
*gurdijaną	Proto-Germanic (gem-pro)	To gird.
gyrdan	Old English (ang)	To gird.
gurden	Middle English (enm)

Words with the same origin as girden