A variant spelling or historical form of 'Alice' or a type of fabric/material (when used in textile contexts); usage depends on context.
Either from the Germanic name 'Alice' with variant spelling, or from historical textile terminology. If textile-related, derives from medieval European fabric production terminology.
This word is mostly historical or a name variant now, but in medieval trade records you'll find 'alix' as a type of fabric—showing how product names from old languages survive in documents.
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