故 is a Chinese hanzi, listed here under the keyword “ancient”. It is built from 古 (old) and 攵 (rap). It appears as a component in 1 other character in this index.
On KumiJi Glyph Explorer, open the parts search and type “old” + “rap”. 故 is among the results, together with every other character containing the same shapes.
Open 故 in the interactive kanji search
to expand every part down to its smallest pieces, add your own names and mnemonic stories,
or search for other characters by their parts.