The most suitable term is "pecatta mi". It is a Latin locution that means my defect, my sin, my fault. It was used to indicate suspicious increases in capital or of dubious provenance. For this reason the grandmothers had the adage "Sacristan that sells wax and has no wax, from where it pecatta mine, if it is not of the sacristy". It is used as a synonym for dubious, suspicious, rare.
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