磐

磐 is a phono-semantic compound:

石 (stone, rock) – semantic element, indicating stone or rock;

般 (ban, general, kind) – phonetic element, providing the sound.

Thus, the character conveys the sense of a large, broad, solid rock.

Semantic range:

- large rock, boulder – 너럭바위.

- firm, stable, immovable – figurative sense, as in foundation or steadfastness.

반석 (磐石) – “bedrock, firm foundation,” often used metaphorically for something unshakable.

안반 (岸磐) – cliff rock, rocky shore.