An Etymological Dictionary of the German Language/Treff
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Treff, n., ‘club’ (at cards), properly Treffle (18th cent.), from Fr. trèfle, ‘clover, trefoil’ (Lat. trifolium).
Treff, n., ‘club’ (at cards), properly Treffle (18th cent.), from Fr. trèfle, ‘clover, trefoil’ (Lat. trifolium).