to contribute to; to promote
有 · 6 strokes
Depicts a hand (又) holding meat (肉). In Oracle script this character was written the same as the phonetically similar 又, but later the 肉 component was added to distinguish them.
助 · 7 strokes
Phonosemantic compound. 力 represents the meaning and 且 represents the sound.
于 · 3 strokes
Pictograph of a musical wind instrument with a reed, which is now written as 竽. The current meaning is a phonetic loan.