The Broad Scots Dictionary

Labour - "thrash"
Laddie - "diminutive of lad"
Laigh - "low"
Lairing - "wading and sinking in snow, mud, etc."
Laith - "loath"
Lallans - "the Scottish dialect of the English language"
Lambie - "diminutive of lamb"
Lammas moon - "harvest moon"
Lampit - "a kind of shell-fish, a limpet"
Lan' - "land; estate"
Lan'-afore - "foremost horse in the plough"
Lan'-ahan - "hindmost horse in the plough"
Lane - "lone." My lane, thy lane "myself alone, thyself alone"
Lanely - "lonely"
Lang - "long." To think lang "to long, to weary"
Lap - "did leap"
Lave - "the rest, the remainder, the others"
Laverock - "the lark"
Lawin - "shot, reckoning, bill"
Lawlan - "lowland"
Lay my dead - "attribute my death"
Lea'e - "to leave"
Lea-rig - "grassy ridge"
Lear [pronounced lare] - "learning"
Lee-lang - "live-long"
Leesome - "pleasant"
Leisler - "a three-pronged dart for striking fish"
Leugh - "did laugh"
Leuk - "a look; to look"
Libbet - "gelded"
Lift - "the sky"
Lightly or Lichtly - "sneeringly; to sneer at"
Lilt - "a ballad, a tune; to sing"
Limp't - "limped, hobbled"
Limpet - "a kind of shell-fish
Linkin' - "tripping"
Linn - "a waterfall; a precipice"
Lint - "flax" Lint I' the bell "flax in flower"
Lintwhite - "a linnet"
Loan or Loanin - "the place of milking"
Loof - "the palm of the hand"
Looves - "plural of loof"
Loun - "a fellow, a ragamuffin; a woman of casy virtue"
Loup - "jump, leap"
Lowin' - "flaming"
Lowrie - "abbreviation of Lawrence"
Lowse - "to loose"
Lows'd - "loosed"
Lug - "the ear; a handle"
Lugget - "having a handle"
Lum - "the chimney"
Lunch - "a large piece of cheese, flesh, etc."
Luntin' - "smoking"