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.
[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 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'al adj., pre'fix'al·ly adv., pre'fix·a'tion (-fĭk-sā'shən), pre·fix'ion (-fĭk'shən) n.