Old English þræd

← Proto-Germanic *þrēduz (inherited)

← Old High German drāt (cognate)

← Proto-Indo-European *treh₁-tu- (derived)

← Proto-Indo-European *terh₁- (mention)

← Old Norse þráðr (cognate)

← Old Frisian thrēd (cognate)

← Old Saxon thrād (cognate)

→ Old Norse þráðr (cognate)