An archaic or dialectal term for a type of vessel, container, or potentially a causeway or embankment in old English.
Possibly from Old French casse (a box or case) or related to causeway terminology. This is an obsolete or highly specialized term with uncertain etymology.
Words like 'casson' are linguistic ghosts—they appear in old documents but their precise meanings are lost because they went out of use before modern dictionaries were complete.
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