Global Anabaptist Mennonite Encyclopedia Online in the context of Mennonite Central Committee

Amish Mennonites came into existence through reform movements among North American Amish mainly between 1862 and 1878. These Amish moved away from the old Amish traditions and drew near to the Mennonites, becoming Mennonites of Amish origin. Over the decades, most Amish Mennonites groups removed the word "Amish" from the name of their congregations or merged with Mennonite groups.

In the latest decades the term "Amish Mennonite" is sometimes erroneously used to designate horse-and-buggy Old Order Mennonites, whose lifestyle is more or less similar to the Old Order Amish. Sometimes the term "Amish Mennonite" is used to designate all groups of Amish, both the Old Order Amish and the Amish Mennonites and also the Amish before this division in the second half of the 19th century. The Global Anabaptist Mennonite Encyclopedia Online uses the term "Amish Mennonite" in this sense.