Entertainment / Literature / Retroflex: In linguistics, any sound produced with the tongue-tip bent or curled backward--such as the sound of the liquid . Retroflex s over time often change into the liquid and vice-versa. For instance, Algeo points to the the in Sarah, Katherine, and steorra (Old English 'star') is respectively a cognate with the in Sally, Kathleeen, and stella (Latin 'star'). See page twenty-six of The Origins and Development of the English Language for further information.
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