Maimouna, the day after Pesach, is probably the most well-known of the isru chag traditions. It originated with the Jews of North Africa, and these days Israelis honour it by making barbecues. There are various explanations for the meaning and origin of the holiday. A messianic hint can be glimpsed in the etymological explanation that sees the phrase as a corruption of “ma’amin ana” – “I believe”. This is a consolatory greeting suggesting that although the Messiah has not, as anticipated, actually arrived this Pesach, we remain hopeful.
I find this explanation of the origin of "Maimouna" oddly moving. Is there evidence that it is correct?