寶
ホウ, たから, たか
treasure, jewel, precious, rare
JLPT0 G13 S0 F5000
This character was written with a combination of many different elements before 寶 was settled upon as the standard form. Among these combinations, most of the forms featured both 宀 roof/building and 貝 commodities. The phonetic similarity to 富 suggests that the original idea of the character that came to be written 寶 was that of 富, namely, a building stocked with abundant possessions → *treasure* → *currency* → *cherish*.
[Full Kanji Etymology List]