Old English þyrre

← Proto-Germanic *þursuz (inherited)

← Proto-West Germanic *þurʀī (inherited)

← Old High German durri (cognate)

← Proto-Indo-European *ters- (inherited)

← Latin terra (cognate)

← Old Norse þurr (cognate)

← Old Saxon thurri (cognate)

→ Old High German durri (cognate)

→ Old Saxon thurri (cognate)