Definitions

busy; to toil, to slave away

Etymology phono-semantic

stone

Semantic: Phonetic:

About

The character is a phono-semantic compound: (stone) provides the meaning, and (to beg) the sound. Historically, it appears almost exclusively in the reduplicated binomial 矻矻 (kūkū), describing toil with extreme diligence and exhaustion. The stone radical suggests the back-breaking work of breaking or moving rocks, a concrete sense that later extended to any persistent, strenuous effort or industriousness.