assimilation
Quick Summary
In linguistics, assimilation is a sound change process where one sound becomes more like a neighboring sound in terms of articulation. This often happens to make pronunciation easier.12
For example, the word "immovable" was once spelled "inmovable." The 'n' sound gradually became more like the 'm' sound next to it, resulting in the modern spelling and pronunciation. Another instance is how the Latin prefix "ad-" combined with "similis" to form "assimilate," where the 'd' sound changed to 's'.13
Assimilation can occur in various ways, such as changes in voicing or place of articulation, and is a common phenomenon in the natural evolution of languages.2
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