What does rhotacism mean?
Rhotacism is a linguistic term for a change in which the /r/ sound is replaced, weakened, or lost. Its best-known historical example is the disappearance of /r/ in parts of southern England, where words historically containing /r/ often came to be pronounced without it. The process also helps explain why related languages may have strikingly different pronunciations of the same word. Rhotacism is used by linguists to describe historical sound change, regional dialect differences, and the development of a language over time. More broadly, the term can refer to changes in how /r/ is realized, including shifts between a trilled, tapped, or approximant sound. It is a technical expression rather than everyday vocabulary, and its use usually assumes some knowledge of phonology or historical linguistics.
nounRhotacism is the substitution of another sound for the /r/ sound, especially the historical loss or weakening of /r/ in a language. In linguistics, it may also refer more broadly to changes involving the realization of /r/.
- The substitution of another sound for /r/, especially the historical loss or weakening of /r/.
- A general change in the pronunciation or realization of /r/ within a language.
"The disappearance of /r/ in many English dialects is a well-known example of rhotacism."
"Historical rhotacism is evident in the loss of /r/ in several southern English dialects."
"Linguists compare rhotacism in English dialects with similar sound changes in other languages."
Usually used in the plural when referring to several separate instances of the sound change.
"The study compares several rhotacisms found across different English dialects."
Rhotacism explains why some languages lose the /r/ sound altogether while others pronounce it in dramatically different ways.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does rhotacism come from?
The word comes from Greek rhōtēr, meaning “rhetor” or “speaker,” combined with the English suffix -ism. Greek rhētōr itself belongs to a family of words connected with speaking, declaring, or rhetoric, which explains the later English relatives rhetoric and rhetorician. The linguistic meaning of rhotacism developed from the study of sound changes involving /r/.
Related word forms
How rhotacism is actually used
This is a specialist term used primarily in linguistics and historical linguistics. It is usually discussed in connection with a particular language, period, or dialect.