Dictionary.net

• A member of the more moderate of the two sections into which the Dutch Anabaptists became divided in the sixteenth century on the question of excommunication, both with regard to the strictness and severity with which it was applied, as well as the extent to which it reached, their opponents extending it to the relatives of the offender: so called from a district in Holland called Waterland.

1899 - The american dictionary of the english language.
By Daniel Lyons