In linguistics, a suprafix is a type of affix where a suprasegmental change (such as tone or stress) modifies an existing morpheme's meaning. In many languages, they are used to differentiate between otherwise identical lexemes, but in some they are used derivationally or inflectionally.

An example in English is "PRO-duce" and "pro-DUCE", the former being a noun referring to farm products (especially fruits and vegetables) and the latter being a verb meaning "to create" or "to bring forth".

Affixes

Suprafix