Fortition

Fortition

Fortition is a consonantal change from a 'weak' sound to a 'strong' one, the opposite of the more common lenition. For example, a fricative or an approximant may become a plosive (i.e. IPA| [v] becomes IPA| [b] or IPA| [r] becomes IPA| [d] ). Although not as typical of sound change as lenition, fortition may occur in prominent positions, such as at the beginning of a word or stressed syllable; as an effect of reducing markedness; or due to morphological leveling.

Examples

The extremely common approximant sound [palatal approximant|IPA| [j] ] is sometimes subject to fortition; being a semivowel, almost any change to the sound save from simple deletion would constitute fortition. It has changed into the voiced fricative [voiced palatal fricative|IPA| [ʝ] ] in a number of indigenous languages of the Arctic, such as the Eskimo-Aleut languages and Ket, and also in some varieties of Spanish. Via a voiceless palatal approximant, it has turned in some Germanic languages into [voiceless palatal fricative|IPA| [ç] ] , the voiceless equivalent of IPA| [ʝ] and also cross-linguistically rare though less so than IPA| [ʝ] . Another change turned IPA| [j] to an affricate [Voiced postalveolar affricate|IPA| [dʒ] ] during the development of the Romance languages.

Fortition of the cross-linguistically rare interdental fricatives IPA| [θ] and IPA| [ð] to the almost universal corresponding stops IPA| [t] and IPA| [d] is relatively common. This has occurred in most continental Germanic languages and several English dialects, several Uralic languages, and a few Semitic languages, among others. This has the result of reducing the markedness of the sounds IPA| [θ] and IPA| [ð] .

Fortition also frequently occurs with voiceless versions of the common lateral approximant [alveolar lateral approximant|IPA| [l] ] , which are usually source from combinations of IPA| [l] with a voiceless obstruent. The product is a voiceless alveolar lateral fricative IPA| [ɬ] .

An example of simultaneous fortition and lenition is Spanish, which changed IPA| [b] into IPA| [β] medially, but exhibits the opposite change in initial position. This resulted in the corresponding phonemes (written "b" and "v") merging into one.

In addition to language-internal development, fortition can also occur when a language acquires loanwords. Goidelic languages frequently display fortition in loanwords as initial fricatives are disallowed in the citation form of Goidelic words. Thus initial fricatives of loanwords are strengthened to the corresponding unlenited variant or the nearest equivalent if the fricative is not part of the phoneme inventory.

Examples from Scottish Gaelic [MacBain, A. (1911) "An Etymological Dictionary of the Gaelic Language". Gairm.] :

ee also

*Consonant mutation
*Grimm's Law
*Historical linguistics

References

*Crowley, Terry. (1997) "An Introduction to Historical Linguistics." 3rd edition. Oxford University Press.


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