Consonant harmony is a type of "long-distance" phonological assimilation akin to the similar assimilatory process involving vowels, i.e. vowel harmony. [edit] ExamplesThere are several kinds of consonant harmony. One of the most commonly found, called sibilant harmony, requires all the sibilants of the word to belong either to the anterior class (s-like sounds) or the nonanterior class (sh-like sounds). Such patterns are found in Chumash, Navajo, Western Apache, Kinyarwanda, and elsewhere. For example, in Western Apache the verbal prefix si- is usually an alveolar fricative, as can be seen in the words below:
However, when si- occurs before a verb stem that starts with a post-alveolar affricate, the si- assimilates to the alveolar place of articulation (becoming shi-):
Various Austronesian languages exhibit consonant harmony among the liquid consonants, with [r] assimilating at a distance to [l] or vice versa. Likewise, in Sanskrit, [n] is retroflexed to [ɳ] if certain consonants precede it in the same word, even at a distance. Guaraní shows nasal harmony, by which certain affixes have alternative forms according to whether the root includes a nasal (vowel or consonant) or not. For instance, the reflexive prefix is realized as oral je- when preceding an oral stem like juka "kill", but as nasal ñe- when preceding a nasal stem like nupã "hit", where the ã makes the stem nasal. Some Finnish speakers find it hard to pronounce both 'b' and 'p' in foreign words (e.g. pubi), so they voice (bubi) or devoice (pupi) the entire word. It should however be noted that the distinction between these consonants is not native to Finnish. The one native voiced stop, d is not subject to similar behavior, e.g. tädit ("aunts"). [edit] See also[edit] Bibliography
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