inverted caret

noun2

1. •
   A caret (^) that has been inverted.

   • Learners employing the vowels must not use either the inverted caret v (a) or the dot, (e or i) except as vowels. — 1823
2. •
   (informal) A háček.

   • Bohemian, as we call it, or Cesky, as they write it (with another inverted caret over the C). — 1896