荫: In ancient times, it referred to the privilege where descendants received official titles or privileges due to the merits of their ancestors.
桦: The tree species, birch. "Birch" symbolizes the toughness akin to a tree, unyielding to wind and rain, metaphorically representing a robust physique conducive to good health.
Meaning: Shading and protection, with the resilience and strength of the birch tree, symbolizing steadfastness and sheltering others.