Heads

Abstract
Recent work on morphology – Lieber, 1981; Williams, 1981; Kiparsky, 1982; and Selkirk, 1982, in particular – has extended the notion of HEAD from syntax into new areas in morphology. In particular, these writers propose that in forms with derivational affixes, like Englishhappiness, the affix is the head of the combination; for instance, Kiparsky assumes (following Lieber) ‘that all word formation is endocentric’, meaning by this ‘that the category of a derived word is always non-distinct from the category of its head, in English usually the rightmost constituent (cf. Williams, 1981)’ (133).