自告奋勇 (zì gào fèn yǒng) — to volunteer (for a difficult task), to step up and take on a challenge

A drawing of the thing itself, worn down over three thousand years into a few strokes.

假借jiǎjièLater borrowed for its sound alone — the picture has nothing to do with today’s meaning.

自 originally drew a nose. It was borrowed purely for its sound to write 自, so the picture and the meaning are unrelated.

Two or more meaningful parts placed together so that their meanings combine into a new one.

The origin is unclear: one theory sees 告 as 壴 (a decorated drum) above 口 (an open mouth), while another sees a tongue sticking out of 口.

Two or more meaningful parts placed together so that their meanings combine into a new one.

This origin belongs to the traditional form 奮; 奋 is its simplified writing.

The traditional form 奮 pairs 奞, a bird, with 田, a field, to show a bird spreading its wings to fly; the simplified 奋 is a later abbreviation.

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

勇 pairs 甬, which gives the sound, with 力, a strength part, to mean brave and strong.