koppa

/K AA1 P AH0/
noun
  1. 1

    The Greek numeral Ϟ (lowercase ϟ), descended from the ancient letter and having the numerical value of 90.

  2. 2

    The archaic Cyrillic numeral Ҁ (lowercase ҁ), descended from the ancient Greek letter and having the numerical value of 90.

  3. 3

    An Ancient Greek letter representing /k/, Ϙ / ϙ, replaced by kappa by the Classical Greek period.