Found:

Function composition

**MORPHOLOGY: ** an algebraic notion which DiSciullo & Williams (1987)
adopt from Categorial Grammar to account for an important difference between compounding and affixation.
In compounding the non-head satisfies a theta-role of the head. The non-head of a complex word headed by an affix, however, does not satisfy a theta-role of the affix; rather the affix and the stem form a composed argument structure. In order to be able to relate the argument structure of an affixal head to its non-head, they propose that suffixes are
**functor**s with respect to their complements.
** EXAMPLE:** the English adjective *complete* has a
Theme as its the external argument, and the nominal suffix -*ness* the "degree" argument R, as in (i). Since -*ness* is assumed to be a functor, function composition yields the composed argument structure in (ii):

(i) complete -ness => (ii) completeness (Th) (R) ((Th) R) functor

LIT. | Di Sciullo, A. M. and E. Williams (1987) Spencer, A. (1991) |