Imbrication (linguistics)

Imbrication is a phenomenon occurring in many Bantu languages in which morphemes interweave in certain morphophonological conditions.

For example, consider the Setswana verb stem -rek-a ("buy"). The passive voice is formed by adding the extension -w- to produce -rek-w-a. The perfect is formed by adding the morpheme -ile to produce -rek-ile. But when these are combined to produce the perfect form of the passive voice, the verb becomes -rek-il-w-e, with the perfect morpheme split into two pieces, rather than the expected *-rek-w-ile.[1]

Hyman, using the Cibemba language as an example, proposes four main factors that determine the occurrence of imbrication:[2]

the size of the verb base
the nature of the final C of the verb base
the nature of the V preceding the final C of the verb base
the identity of the last morpheme of the verb base

References

Chebanne, Andy M. (1993). "The Imbrication of Suffixes in Setswana". Retrieved 11 November 2014.
Hyman, Larry M (1995). "Minimality and the prosodic morphology of Cibemba imbrication". Journal of African Languages and Linguistics. 16 (1): 2. Retrieved 24 February 2022.

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[1] Chebanne, Andy M. (1993). "The Imbrication of Suffixes in Setswana". Retrieved 11 November 2014.

[2] Hyman, Larry M (1995). "Minimality and the prosodic morphology of Cibemba imbrication". Journal of African Languages and Linguistics. 16 (1): 2. Retrieved 24 February 2022.