Yn - Wikipedia
https://en.wikipedia.org/wiki/Yn
WebYn (Ꙟ ꙟ) is an archaic Cyrillic letter. It looks like the Cyrillic letter Psi (Ѱ ѱ) with its upper half turned upside down, but the letter mostly looks like an arrow pointing vertically up (↑). It was used in the Romanian Cyrillic alphabet, where it represented the sounds [ɨn], [ɨm], and [ɨ] at the beginning of words.
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