11 letters · 21 points in Scrabble
noun verbal misrepresentation intended to take advantage of you in some way
originAn alteration of Scots sculduddery, sculdudrie (“adultery, unchaste behaviour; obscenity, lewdness”), of long-uncertain origin (probably a euphemism). Relation to skull is speculative at best and likely folk etymology. The American spelling skullduggery is in keeping with terms such as skillful and willful.
Etymology from Wiktionary, CC BY-SA 3.0