Kranditri Classification/У

U (У, у) is a letter of the Cyrillic script. It commonly represents the close back rounded vowel /u/, somewhat like the pronunciation of ⟨oo⟩ in “boot.” The forms of the Cyrillic letter U are similar to the lowercase of the Latin letter Y (Y, y), but like most other Cyrillic letters, the upper and lowercase forms are similar in shape and differ mainly in size and vertical placement. Historically, Cyrillic U evolved as a specifically East Slavic short form of the digraph ⟨оу⟩ used in ancient Slavic texts to represent /u/. The digraph was itself a direct loan from the Greek alphabet, where the combination ⟨ου⟩ (omicron-upsilon) was also used to represent /u/. Later, the o was removed, leaving the modern upsilon-only form.