parasynthesis
/parəˈsɪnθɪsɪs
/noun [mass noun] Linguistics
A process by which a term is formed by adding a bound morpheme (e.g. -ed) to a combination of existing words (e.g. black-eyed from black eye(s) + -ed).
Derivatives
parasynthetic
parasynthetically
Origin
Mid 19th century: from Greek parasunthesis, from para- 'subsidiary' + synthesis.