I hate it when people mispronounce/misspell Yazhi. It's pronounced using the the most unique feature of the language - "zh" instead of "L" just like Tamil itself (it's actually Thamizh). The original wikipedia page:
https://ta.wikipedia.org/wiki/%E0%AE%AF%E0%AE%BE%E0%AE%B3%E0...
Yes. Very few non-Dravidian languages spoken in India, have that specific sound.
The only exception I can think of is Marathi. The 'el' in 'sakal' is roughly the same.
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I'm coming around to the idea that we _should_ really be using "l" or maybe "r" instead of "zh" for the ழ. At least it's closer in pronunciation and there's a chance someone can work their way to it. Zh is like "we don't have an exact match so we'll repurpose a letter we don't use". It has no phonetic relevance.