Regards means greetings. So 'kind regards' or 'best regards' means something like 'I greet you in a friendly way'. Regards probably comes from the french verb 'regarder' meaning to look.
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AnonymousThis is entirely wrong.Perhaps not "entirely"?
AnonymousRegards - properly - means with regards to, which means with attention to the matters discussed above.This seems far afield from the original poster's question, which I think was best addressed by the one-time poster, etimbo, six and a half years ago.