An archaic or dialectal variant of 'cause' or a shortened form used in some contexts.
Likely a shortened or dialectal form of 'cause', which comes from Old French 'cause' and Latin 'causa'. May represent regional pronunciation or abbreviation in historical texts.
In old English writing, you'll find 'caus' as a shortened form—medieval scribes were the original text-messagers, abbreviating words to save expensive parchment, creating spellings that look strange to us now.
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