koppa noun3 •An Ancient Greek letter representing /k/, Ϙ / ϙ, replaced by kappa by the Classical Greek period. •The Greek numeral Ϟ (lowercase ϟ), descended from the ancient letter and having the numerical value of 90. •The archaic Cyrillic numeral Ҁ (lowercase ҁ), descended from the ancient Greek letter and having the numerical value of 90. formskoppas
