English tharf

← Old English þeorf (inherited)

← German derb (cognate)

← Middle Dutch derf (cognate)

← Middle English therf (inherited)

← Proto-Germanic *þerbaz (inherited)

← Middle High German derp (cognate)

← Proto-Indo-European *(s)terbh- (derived)

← Proto-Indo-European *(s)trebh- (mention)

← Icelandic þjarfur (cognate)

← Old Frisian therve (cognate)

→ English tharcake (compound)

→ German dürfen (cognate)

→ Old High German derb (mention)

→ Ancient Greek τέρπω (cognate)

→ Alemannic German törfe (cognate)