To put or fix before, or at the beginning of another thing; as, to prefix a syllable to a word; to prefix an advertisement to a book.

To set or appoint beforehand; as, to prefix the hour of meeting. A time prefix, and think of me at last.

To settle; to establish. I would prefix some certain boundary between the old statutes and the new.

A letter, syllable or word put to the beginning of a word, usually to vary its signification. A prefix is united with the word, forming a part of it; hence it is distinguished from a preposition; as pre, in prefix; con, in coniure; with, in withstand. Prefixes are sometimes called particles, or inseparable prepositions.