ゲン, はら, た, ばる, ら, わた, わら

meadow, original, primitive, field, plain, prairie, tundra, wilderness

JLPT3 G2 S10 F172

cliff + an abbreviated form# of spring → round spring at the base of a cliff → *origin*. *Field* and *plain* are borrowed meanings.

[Full Kanji Etymology List]