由来已久
yóulái-yíjiǔTraditional 由來已久
long-standing; to have a long history
Every meaning
yóulái-yǐjiǔ
- long-standing; to have a long history
Its characters
Words with 由
Words with 来
Meanings from our own dictionary. Chengyu from the Xinhua idiom list, the most common first.