-agogue

-agogue

or -agog

suff.

A substance that stimulates the flow of: emmenagogue.

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[French, from Late Latin -agōgus, from Greek -agōgos, from agōgos, drawing off, from agein, to lead, drive; see ag- in Indo-European roots.]

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.

-agogue

or

-agog

n combining form

1. indicating a person or thing that leads or incites to action: pedagogue; demagogue.

2. (Biochemistry) denoting a substance that stimulates the secretion of something: galactagogue.

[via Late Latin from Greek agōgos leading, from agein to lead]

-agogic adj combining form

-agogy n combining form

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

-agogue

or -agog,

a combining form with the meaning “leader, bringer,” of that named by the initial element, occurring in loanwords from Greek (demagogue; pedagogue); used also in medical terms that denote substances inducing expulsion or secretion (hemagogue).

[< Greek -agōgos,-ē, -on, akin to ágein to lead]

Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.