English darnel

← Middle Dutch verdarnt (cognate)

← Middle Dutch verdaernt (mention)

← Middle English darnel (inherited)

← Middle English dernel (mention)

← French dernelle (cognate)

← French darnette (mention)

← Proto-West Germanic *darjan (derived)

← Walloon darne (cognate)

← Walloon derne (mention)

→ English cockle (link)