Origin

This character appears to be a phono-semantic compound, where the bottom part 寸 (a radical related to measurement or buildings) carries the core meaning of a structure or place, while the top part 土 serves as a sound hint for pronunciation. The combination came to specifically denote a Buddhist temple, likely because temples were important institutional buildings in East Asia where the character originated. The character's meaning narrowed to "temple" through its use in Buddhist contexts, even though the visual components don't directly depict a temple's appearance.