An Etymological Dictionary of the German Language/Deich

by Friedrich Kluge

Deich, m., ‘dike’; MidHG. tîch, m.; since the HG. word would, according to phonetic laws, begin with t, we must suppose that it has been influenced, like Dampf perhaps, by LG.; comp. LG. dîk, Du. dijk, AS. dîc, E. dike. Respecting their identity with HG. Teich and E. dike (‘a ditch’), see Teich.