The word for today is…
skullduggery (also skulduggery) (noun) – Crafty deception or trickery or an instance of it.
Source : The Free Dictionary
Etymology : also sculduddery, “fornication,” 1713
1856, apparently an alteration of Scottish sculdudrie “adultery” (1713), sculduddery “bawdry, obscenity” (1821), a euphemism of uncertain origin.
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