betacism

noun

be·​ta·​cism

ˈbā-tə-ˌsi-zəm also ˈbē-

plural -s

: loss of distinction between the sounds of b and v in a language or dialect

Word History

Etymology

New Latin betacismus, from Latin beta (from Greek bēta) + Late Latin -cismus (as in iotacismus iotacism)

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