In the sense of being short, or briefly stated, laconic is somewhat like curt, but without any sense of the rudeness that curt conveys.
Large.
loess
You can have a Lust for power.
lustre
Live wire :)
Lid
Lorgnette is the alternative name for opera glasses
The word you are looking for is probably - legerdemain. Another synonym for sleight of hand is - Prestidigitation.
Some words to describe a person beginning with L are:lackadaisicallameLatinlaughinglazyleanlegendarylethargiclevel headedlikablelikelylimplithelittlelivelylividloathsomelocallogicallonelyLovablelovelylucidluckylying
Leery, as in, He was leery of the too-good-to-be-true deals he kept finding on Craigslist.
"Lucky" is a five letter word beginning with l
Il