An Etymological Dictionary of the German Language/Tuff
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Tuff, Tuffstein, m., ‘tufa, tuff,’ from the equiv. MidHG. and OHG. tufstein (tub-, tupf-stein); formed from Ital. tufo (Fr. tuf), based on Lat. tôphus.
Tuff, Tuffstein, m., ‘tufa, tuff,’ from the equiv. MidHG. and OHG. tufstein (tub-, tupf-stein); formed from Ital. tufo (Fr. tuf), based on Lat. tôphus.