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Cheshirization, or cheshirisation, is a type of sound change where a trace remains of a sound that has otherwise disappeared from a word. The term was coined by James Matisoff and is a neologism, i.e. it is not an established scientific term. It is used here to refer to a process that is real but so far has no generally accepted name. The term rephonologization has sometimes been used to refer to this process; see below. Essentially, a distinction between two sets of words that was formerly expressed through one phonological feature (e.g. a particular sound) is preserved (or partly preserved) through being re-expressed using a different phonological feature. This typically occurs through two sound changes: one that introduces a modification of some sort, conditioned on the presence or absence of a particular feature, followed by another change that deletes or changes the conditioning feature. A common example is Germanic umlaut. In many Germanic languages around 500–700 AD, a sound change fronted a back vowel when an or followed in the next syllable. Typically, the or was then lost, leading to a situation where a trace of the original or remains in the fronted quality of the preceding vowel. Alternatively, a distinction formerly expressed through the presence or absence of an or suffix was then re-expressed as a distinction between a front or back vowel. As a specific instance of this, in prehistoric Old English, a certain class of nouns was marked by an suffix in the (nominative) plural, but had no suffix in the (nominative) singular. A word like "mouse", for example, had a plural "mice". After umlaut, the plural became pronounced , where the long back vowel was fronted, producing a new subphonemic front-rounded vowel , which serves as a secondary indicator of plurality. Subsequent loss of final , however, made a phoneme and the primary indicator of plurality, leading to a distinction between "mouse" and "mice". In this case, the lost sound left a trace in the presence of ; or equivalently, the distinction between singular and plural, formerly expressed through a suffix , has been re-expressed using a different feature, namely the front-back distinction of the main vowel. This distinction survives in the modern forms "mouse" and "mice" , although the specifics have been modified by the Great Vowel Shift. == Examples == Before disappearing, a sound may trigger or prevent some phonetic change in its vicinity that would not otherwise have occurred, and which may remain long afterward. For example : * In the English word ''night,'' the sound (spelled ''gh'') disappeared, but before, or perhaps as it did so, it lengthened the vowel , so that the word is pronounced "nite" rather than the "nit" that would otherwise be expected for a closed syllable. * In French, a final sound disappeared, but left its trace in the nasalization of the preceding vowel, as in ''vin blanc'' (:vɛ̃ blɑ̃), from historical . * In American English, the words ''rider'' and ''writer'' are pronounced with a instead of and as a result of flapping. The distinction between the two words is preserved by (or transferred to) the length of the vowel (or in this case, diphthong), as vowels are pronounced longer before voiced consonants than before voiceless consonants. Other examples: * consonant mutation in Celtic languages (a lost vowel triggered initial consonant lenition, and a lost nasal triggered nasalization); * the prevention of sound change by a lost consonant in Lahu; * floating tones, which are the remains of entire disappeared syllables; * the tone split of Chinese, where the voiced consonants present in Middle Chinese lowered the tone of a syllable and subsequently lost their voicing in many varieties. * In Estonian and some other Uralic languages, when case endings are elided, the changed root indicates the presence of the case, see consonant gradation. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Cheshirization」の詳細全文を読む スポンサード リンク
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