Definitions

insect that eats into books, clothing etc; moth-eaten; worm-eaten

Etymology phono-semantic

insect

Semantic: Phonetic:

About

The character 蠹 primarily functions as a noun for wood-boring insects, bookworms, or moths that consume and destroy organic materials. Its structure features the semantic radical 虫 at the bottom, classifying it as an insect or creeping creature. The upper portion, depicting an enclosure around a tree (木), visually reinforces the concept of insects dwelling within and gradually consuming wood or books from the inside out. Over time, this literal meaning expanded into a figurative verb: to slowly erode, corrupt, or undermine a system internally. This figurative sense is frequently used in historical and political texts to describe corrupt officials or malicious individuals who secretly ruin a state or society.

Etymology Hide

Seal etymology image
Seal Shuowen (~100 AD)
Seal etymology image
Seal Shuowen (~100 AD)
Clerical etymology image
Clerical Qin dynasty (221-206 BC)
Traditional Modern
Simplified Modern