Conlang/Intermediate/History/Common sound changes: Difference between revisions

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Grammar and sound changes
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Assimilation is by far the most important sound change. Assimilation is when a sound changes to become more similar to the surrounding sounds. A consonant may change to match the place or type of articulation of an adjoining consonant.
 
* In English, /{{CXS|n}}/ often becomes [{{CXS|Fɱ}}] (labiodental) before /{{CXS|f}}/, like in <infant>.
 
* The word <assimilation> is an example. It comes from adding &lt;ad-&gt; onto &lt;similate&gt;. The /{{CXS|d}}/ assimilates to /{{CXS|s}}/.
 
 
===Lenition===
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:/{{CXS|t}}/ » [{{CXS|d}}]
:/{{CXS|d}}/ » [{{CXS|s}}]
:/{{CXS|k}}/ » [{{CXS|∅}}]
 
* In some varieties of English, /{{CXS|t}}/ and /{{CXS|d}}/ can become [{{CXS|4}}].
 
* In some varieties of English, /{{CXS|t}}/ and /{{CXS|d}}/ can become [{{CXS|4ɾ}}] word-internally.
 
===Palatalization===
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:Examples:
:/{{CXS|tj}}/ » [{{CXS|tSt͡ʃ}}]
:/{{CXS|dj}}/ » [{{CXS|dZd͡ʒ}}]
:/{{CXS|sj}}/ » [{{CXS|Sʃ}}]
:/{{CXS|zj}}/ » [{{CXS|Zʒ}}]
:/{{CXS|hj}}/ » [{{CXS|Cç}}]
 
* In English, pronunciation of the ''-tion'' suffix as /{{CXS|S@nʃən}}/ is the result of palatalization of a former /{{CXS|si@nsiən}}/.
 
* In Japanese, the pronunciation of <si> as /{{CXS|s\i}}/, <ti> as /{{CXS|t's\i}}/, <di> as /{{CXS|dZi}}/, and <hi> as /{{CXS|Ci}}/ is the result of palatalization.
 
* In Japanese, the pronunciation of <si> as /{{CXS|s\iɕi}}/, <ti> as /{{CXS|t's\it͡ɕi}}/, <di> as /{{CXS|dZid͡ʑi}}/, and <hi> as /{{CXS|Ciçi}}/ is the result of palatalization.
 
===Velarization===
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Velarization is a secondary articulation of a consonant where the back of the tongue is raised towards the velum. In some languages, such as Russian and Irish, velarized consonants often contrast with palatalized consonants.
 
* In some varieties of English, when /{{CXS|l}}/ is found in the syllable coda position, it is velarized (e.g. <wall> as /{{CXS|wO:l_Gwɔːlˠ}}/). When /{{CXS|l}}/ is found in the syllable onset position it is non-velaried (e.g. <lawn> as /{{CXS|lO:nlɔːn}}/).
 
 
===Monophthongization===
 
Monophthongization is the simplification of a diphthong (or triphthong) down to a single vowel. This feature was very common in Old French and Ancient Greek, leading some the diphthongs of these languages to be monophthongized. For instance, the French &lt;ai&gt; and &lt;eau&gt; are now pronounced [{{CXS|Eɛ}}] and [{{CXS|o}}]; in Modern Greek, the combinations &lt;ει&gt; and &lt;οι&gt; are pronounced [{{CXS|i}}].
 
* In Australian English, the diphthong /{{CXS|e@}}/ (as in &lt;air&gt;) is often pronounced [{{CXS|e:}}].
 
* In some AmericanAustralian English dialects, the diphthong /{{CXS|aI}}/ (as in &lt;eyeair&gt;) is often pronounced [{{CXS|a:}}].
 
* In Australiansome American English dialects, the diphthong /{{CXS|e@}}/ (as in &lt;aireye&gt;) is often pronounced [{{CXS|e:}}].
 
===Nasalization===
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Vowels next to nasal consonants very often become nasal themselves. This is a type of assimilation. If a nasal consonant disappears, the mark it left on the vowel may remain, causing nasal vowels to become phonemic.
 
* Again, this is a feature very common in the French language. Consider the word &lt;maison&gt;, ''house'' pronounced [{{CXS|mE"zO_~mɛ.ˈzɔ̃}}]. The &lt;o&gt; was nasalised because a nasal sound (namely /{{CXS|n}}/) was following.
 
===Rhotacism===