Don’t ask me why, but I’ve always loved this word.

legerdemain (leg·er·de·main): / lej er duh MAIN /
noun

(1) slight of hand; (artful) trickery; deception
(2) a show of skill or (deceitful) cleverness

[Via French léger de main meaning “light of hand,” from Latin legenda meaning “things to be read,” from Latin legere meaning “to collect, read.”]

Usage: [via] In fact, especially in light of my own languished linguistic legerdemain, obviously I readily advocate the educational requirement that all children learn at least two, preferably three languages before receiving a diploma.