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A member of the Society of Friends.
[From quake (from an early leader's admonishment to "tremble at the word of the Lord").]
Quak′er·ly adv. & adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.