Dissimilation
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Dissimilation (also called dissimilatory change) is a sound change in which one sound becomes less similar than another, usually adjacent, sound: Latin peregrinus > French pelerin 'pilgrim', Eng. pilgrim. Dissimilation is the opposite of assimilation.
Dissimilation can be classified according to the same dichotomies as assimilation: partial versus total, progressive versus regressive, contact versus distant.
A famous example of dissimilation is the dissimilation of aspirates in Greek and Sanskrit known as Grassmann's Law.
References
- Campbell, Lyle & Mauricio J. Mixco. 2007. A Glossary of Historical Linguistics. Salt Lake City: University of Utah Press.
- Crowley, Terry. 1997. An introduction to historical linguistics 3rd ed. Auckland: Oxford University Press.
- McMahon, April M.S. 1994. Understanding language Change. Cambridge: Cambridge University Press.