Cranberry morpheme


In linguistic morphology, a cranberry morpheme is a type of bound morpheme that cannot be assigned an independent meaning or grammatical function, but nonetheless serves to distinguish one word from another.

Etymology

The archetypal example is the cran of cranberry. Unrelated to the homonym cran with the meaning "a case of herrings", this cran actually comes from crane, although the connection is not immediately evident. Similarly, mul exists only in mulberry. Phonetically, the first morpheme of raspberry also counts as a cranberry morpheme, even though the word "rasp" does occur by itself. Compare these with blackberry, which has two obvious unbound morphemes, and to loganberry and boysenberry, whose first morphemes are derived from personal names.

Examples

Other cranberry morphemes in English include:
Cranberry morphemes can arise in several ways: