- Title before a person’s name - To put or fix before, or at the beginning of, another
thing; as, to prefix a syllable to a word, or a condition to an
agreement. - To set or appoint beforehand; to settle or establish
antecedently. - That which is prefixed; esp., one or more letters or
syllables combined or united with the beginning of a word to modify its
signification; as, pre- in prefix, con- in conjure.