rude, barbarous
儱 centers on uncivilized, rough behavior: being rude or barbarous. The meanings point to a lack of refinement or social grace.
儱 combines 亻 (person) with 龍 (dragon), likely forming a phono-semantic compound where 龍 contributes the sound and the idea of a person suggests the meaning of rude or barbarous. The exact historical development is uncertain.
A person 亻 acting like a wild dragon 龍: fierce, untamed, and rude.
For ロウ, imagine a rude person roaring like a dragon: roar -> ロウ, and the dragon-like rudeness echoes the sound.