Middle English thedisch

← Old English þēodisċ (inherited)

← Middle English thede (affix)

← Middle English -yssh (affix)

← Middle English Duch (doublet)

← Proto-Germanic *þiudiskaz (inherited)

← Proto-West Germanic *þiudisk (inherited)

→ English Dutch (cognate)

→ Middle English Duch (doublet)

→ Alemannic German tüütsch (cognate)