1. a verbal suffix meaning “to make,” “cause to be,” “render” (simplify; beautify); “to become,” “be made” (liquefy). The suffix was introduced into English in loan words from Old French (deify), but is also used in the formation of new words, usually on a Latin root (reify).

Origin of -fy

< Old French -fierLatin -ficāre to do, make
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British Dictionary definitions for fy


suffix forming verbs
  1. to make or becomebeautify; simplify; liquefy

Word Origin for -fy

from Old French -fier, from Latin -ficāre, verbal ending formed from -ficus -fic
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for fy


word-forming element meaning "to make into," from French -fier, from Latin -ficare, from unstressed form of facere "to make, do" (see factitious).

Online Etymology Dictionary, © 2010 Douglas Harper