An Etymological Dictionary of the German Language/Damm

by Friedrich Kluge

Damm, m., ‘dam, dike, mole,’ MidHG. tam(mm); the d of the ModHG. word compared with the t of MidHG. points to a recent borrowing from LG.; comp. Du. and E. dam (a bank), OIc. dammr. Goth. has only the deriv. faurdammjan, ‘to embank, hinder’; akin to AS. demman, E. to dam, ModHG. dämmen.