• Webster's Revised Unabridged Dictionary
    • n Mennonist (Eccl. Hist) One of a small denomination of Christians, so called from Menno Simons of Friesland, their founder. They believe that the New Testament is the only rule of faith, that there is no original sin, that infants should not be baptized, and that Christians ought not to take oath, hold office, or render military service.
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Century Dictionary and Cyclopedia
    • n mennonist Same as Mennonite.
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In literature:

The Friends inquired of the Mennonists whether any of their Society would incline to sit with them on the First-day evening.
"Memoir and Diary of John Yeardley, Minister of the Gospel" by John Yeardley
They wore pretty, clear-starched Mennonist caps, very plain.
"Quilts" by Marie D. Webster
In the region just beyond the Ridges there were farmers also of the community known as Mennonists or Tunkers.
"Toronto of Old" by Henry Scadding