Morphology in LFG

Lexical-Functional Grammar has been consistent over the past 4+ decades about
its conception of syntactic structure and the sorts of rules that license it.
However, despite being a highly lexicalist model of grammar, LFG has not developed
a similarly consistent model of morphology. LFG has in fact assumed a variety of
different models of morphology and interfaces with distinct ‘morphological’
modules and theories in this time. This is perhaps because LFG early on solved the
problem of how morphology and syntax can communicate in a common formal
language — the language of functional descriptions, which can be both associated
with words and their parts and with syntactic elements. We first introduce some
important concepts from morphological theory. We then look at some early LFG
analyses which treated morphology incrementally. Subsequently, we review work
on the syntax–morphology interface in LFG. We end with a discussion of
realizational approaches to morphology in LFG.