碍

礙 is a phono-semantic compound:

石 (stone, rock) – semantic element, indicating obstruction or a solid object in the way;

疑 (ui, to doubt) – phonetic element, providing the sound (ae in Korean).

Thus, the character expresses the idea of something solid, like a rock, blocking or hindering.

방해(妨礙) – hindrance, interference.

지장·장애(障礙) – obstacle, disability, impediment.

礙, 㝵