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pre·fix (prēfĭks)
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tr.v. pre·fixed, pre·fix·ing, pre·fix·es
1. To put or attach before or in front of.
2. (prē-fĭks) To settle or arrange in advance.
3. Grammar
a. To add as a prefix.
b. To add a prefix to.
n.
1. Grammar An affix, such as dis- in disbelieve, attached to the front of a word to produce a derivative word or an inflected form.
2. A letter, word, abbreviation, or number placed before a name, address, or other identifying label to indicate class or category: You have to indicate on the form whether you prefer the prefix Mr., Ms., or Dr.

[Middle English prefixen, from Old French prefixer : pre-, before (from Latin prae-; see PRE–) + fixer, to place (from Latin fīxus, past participle of fīgere, to fasten; see dhīgw- in the Appendix of Indo-European roots). N., from New Latin praefīxum, from neuter sing. of Latin praefīxus, past participle of praefīgere, to fix in front : prae-, pre- + fīgere, to fasten.]

prefixal adj.
prefixal·ly adv.
prefix·ation (-fĭk-sāshən), pre·fixion (-fĭkshən) n.

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2016 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
 

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