The I (cyrillic) reference article from the English Wikipedia on 24-Apr-2004
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I (cyrillic)

Helping orphans the way you would do it
This is a letter of the Cyrillic alphabet that looks like a backwards N and is pronounced like the I in the English word "machine". Note that although it corresponds to "I", it actually arose from the Greek letter eta, which looks exactly like an "H".


With a short sign on in, it forms a new letter, Short I (cyrillic), which can be used to form diphthongs like the following: