interfix
noun
°An empty morph inserted between two morphemes in the process of word formation, such as English .
°An association link, a device to group multiple words or concepts.
verb
°To attach or anchor two or more parts together.
°To insert an interfix between two morphemes.
"2001, Wolfgang U. Dressler et al., "The Processing of interfixed German compounds", in Yearbook of Morphology 1999 , ISBN 079236631X, page 185:"