Young mavin sent that there money back to his father in a letter to be give to the church—and the ol' man burned it.
Neither he nor any other was aware that mavin Newton had seen or been seen by a soul after the commission of his crime.
1965, from Yiddish meyvn, from Hebrew mebhin, literally "one who understands." Plural is mayvinim.
An expert; an authority; a connoisseur: growing clientele of pizza mavins/A real advertising mavin must have thought that up
[1960s+; fr Yiddish fr Hebrew, ''understanding'']