the.com/sleight
The skill so smooth your eyes file a complaint.
means Dexterity and cunning used to deceive, especially the quick-handed trickery of a magician or pickpocket.
from From Old Norse slaegth, meaning cunning or craftiness — kin to sly, not slight, which trips up nearly everyone who writes it down.
Spelling trapSleight of hand, never slight of hand.
Family treeShares roots with sly, not light.
Old meaningOnce meant cleverness broadly, not just trickery.