1778, from Modern Latin suffixum, noun use of neuter of Latin suffixus "fastened," past participle of suffigere "fasten, fix on, fasten below," from sub "upon" (see sub-) + figere "fasten" (see fix (v.)).
in the grammatical sense, 1778, from suffix (n.). Related: Suffixed; suffixing.
A letter or a group of letters added to the end of a word to change its meaning. For example, adding the suffix -ter to the adjectivehot turns it into the comparative adjective hotter, and adding the suffix -ly to the adjective quick turns it into the adverbquickly. Other examples of words with suffixes are: “willing,” “management,” “serviceable,” “harmonize,” and “joyful.” (Compareprefix.)