Origin

This character combines a building classifier on the left with a sound component on the right. The left part, which looks like an open roof or shelter framework, indicates this character relates to structures or architectural spaces. The right component, which is pronounced "rou" (郎), serves as a sound hint to tell you roughly how to pronounce the full character. Together they create a character meaning a long indoor passage or covered walkway within a building — essentially a corridor or hall where people move through an enclosed space.