13th letter in the Ukrainian alphabet
via Wikipedia infobox
Yi or Ji (Ї ї; italics: Ї ї) is a letter of the Cyrillic script. Yi is derived from the Greek letter iota with two dots.
It was the initial variant of the Cyrillic letter І/і, which saw change from two dots to one in the 18th century, possibly inspired by similar Latin letter i. Later two variants of the letter separated to become distinct letters in the Ukrainian alphabet.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).