古字

gǔzì
  1. ancient character
  2. archaic form of a Chinese character

CEDICT

archaic form of a Chinese character

Wiktionary

古代的文字（汉字）

維基詞典

Entry Composition

1 古 gǔ
  1. ancient
  2. old
  3. paleo-
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

Related entries

初文 chūwén archaic (and simpler) form of a Chinese character