訛字

讹字
ézì
  1. erroneous character
  2. typographical error

CEDICT

  1. (formal) wrong character; typo
  2. wrong character; typo

Wiktionary

發生了訛變的漢字

維基詞典

Entry Composition

1 訛 é
  1. error
  2. false
  3. to extort
2 字 zì
  1. letter
  2. symbol
  3. character
  4. word
  5. courtesy or style name traditionally given to males aged 20 in dynastic China

classifier: 個