goblet, bottle, wine-jar
罇 centers on a container for liquids, especially wine: a goblet, bottle, or jar used for serving or storing.
罇 combines 缶 (earthenware jar) with 尊, which likely contributes both sound and the idea of a valued vessel. The exact historical development is uncertain.
A pottery jar 缶 paired with 尊, a shape associated with honor, suggests a prized container: a goblet or wine jar.
For ソン, imagine a son inheriting a precious wine jar: son -> ソン, and the jar is passed down.