魯ろ魚ぎょ亥がい豕し

noun

miswriting a word; using the wrong kanji

A yojijukugo referring to kanji copying errors, especially confusing similar-looking characters. The four kanji in the phrase themselves are easily mistaken for one another (魯 vs 魚, 亥 vs 豕). Used in discussions of classical texts and calligraphy.

See also: 魯魚の誤り (ろぎょのあやまり)

• 古ふるい写しゃ本ほんには魯ろ魚ぎょ亥がい豕しの誤あやまりが多おおく見みられる。

  Many copying errors like 魯魚亥豕 can be found in old manuscripts.