- The definition of a prefix is a word or part of a word that is placed at the beginning of another word to change its meaning.
An example of prefix is adding extra to ordinary, creating extraordinary.
- to fix to the beginning of a word, etc.; esp., to add as a prefix
- Rare to fix beforehand
Origin of prefixMiddle English prefyxen ; from Middle French prefixer ; from Classical Latin praefixus, past participle of praefigere ; from prae-, before (see pre-) + figere, to fix
- a syllable, group of syllables, or word joined to the beginning of another word or a base to alter its meaning or create a new word (Ex.: pre- in precool, un- in unsure)
- a title that is placed before a person's name, as Dr.
- an identifying letter or number placed before another number, etc.
Origin of prefixModL praefixum < neut. of L praefixus: see prefixthe
transitive verbpre·fixed, pre·fix·ing, pre·fix·es
- To put or attach before or in front of.
- To settle or arrange in advance.
- Grammar a. To add as a prefix.b. To add a prefix to.
- Grammar An affix, such as dis- in disbelieve, attached to the front of a word to produce a derivative word or an inflected form.
- A title placed before a person's name.
Origin of prefixMiddle 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 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.
- pre′fix·a′tion , pre·fix′ion
- Though much less common, a plural form prefices exists as well, apparently formed by analogy with index–indices, appendix–appendices, and so on.
(third-person singular simple present prefixes, present participle prefixing, simple past and past participle prefixed)
prefix - Computer Definition
The beginning or to add to the beginning. To prefix a header onto a packet means to place the header characters in front of the packet. "To prefix" at the beginning is the opposite of "to append" characters at the end. See prepend.