an invocation to the Lord, sometimes regarded as forming, with the preceding anathema (in 1 Cor. 16:22), an intensified curse or malediction
Origin:
ME < ML(Ec) < Gr(Ec), assumed to be < Aram māranā thā, O Lord, come, but prob. false transliteration of Heb moḥorām atta, you are put under the ban