Phonological constraints can, in principle, be classified according to whether they are natural (founded in principles of universal grammar (UG)) or unnatural (arbitrary, learned inductively from the language data). Recent work has used this distinction as the basis for arguments about the role of UG in learning. Some languages have phonological…

A more highly constrained and more explanatory theory of phonology is produced if abbreviatory and essential variables are restricted. (CK)

A type of sound symbolism that has influenced the composition of modern Spanish vocabulary is discussed. Rates of lexical retention and loss are attributed to the degree to which verbs fit the developing morphophonemic and semantic patterns. (EJS)