coins, money, wealth
鏹 centers on material value in the form of coins or money, extending naturally to the idea of wealth.
鏹 combines the metal radical 金 with 强, which likely contributes the sound. The character is associated with metal currency, but its detailed historical development is uncertain.
The left side is metal 金, and the right side 强 suggests strength. Picture strong metal coins that hold their value, representing money and wealth.
For キョウ, imagine a strong metal coin with the face of a famous person from Kyoto: Kyoto -> キョウ, and the coin is your wealth.