Prefix — Defs

01 v. t. 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.

imp. & p. p. Prefixed; p. pr. & vb. n. Prefixing

1.
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.
2.
To set or appoint beforehand; to settle or establish antecedently.[Obs.]
“And now he hath to her prefixt a day.” — Spenser.

02 n. That which is prefixed; esp., one or more letters or syllables combined or united with the beginning of a word to modify its signification;…

1.
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.