-factionsuff. Production; making: petrifaction.[Middle English -faccioun, from Old French -faction, from Latin -facti?, -facti?n-, from factus, past participle of facere, to make; see dh?- 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.