About LATIN CAPITAL LETTER U WITH CIRCUMFLEX BELOW
Latin Capital Letter U With Circumflex Below (U+0001) is a Unicode uppercase letter from the Latin Extended Additional block. It resides on Plane 0 (BMP, Basic Multilingual Plane), has bidirectional class L (left-to-right), is not mirrored, and has combining class 0 (Not Reordered). In HTML it can be written as Ṷ or Ṷ.