Consonant strengthening: A crosslinguistic survey and articulatory proposal

Abstract

AbstractGiven the common intuition that consonant lenition occurs more often than fortition, we formulate this as a hypothesis, defining these sound change types in terms of decrease or increase in oral constriction. We then test the hypothesis on allophonic processes in a diverse sample of 81 languages. With the hypothesis confirmed, we examine the input and output of such sound changes in terms of manner and place of articulation and find that while decrease in oral constriction (weakening) affects most consonant types, increase in oral constriction (strengthening) is largely restricted to palatal and labial glides. We conclude that strengthening does not appear to be the simple inverse of weakening. In conclusion we suggest some possible avenues for explaining how glide strengthening may result from articulatory production pressures and speculate that strengthening and weakening can be encompassed under a single theory of sound change resulting from the automatization of production.