Lambent

lam·​bent | \ ˈlam-bənt  \
1playing lightly on or over a surface FLICKERING
2softly bright or radiant
3marked by lightness or brilliance especially of expression

Lambrequin

noun

1. (North American) a short piece of decorative drapery hung over the top of a door or window or draped from a shelf or mantelpiece.

2. a piece of cloth covering the back of a medieval knight’s helmet, represented in heraldry as the mantling.

Lassitude

noun

  1. a state of physical or mental weariness; lack of energy: she was overcome by lassitude and retired to bed 

[The Prelude — William Wordsworth]

Laund

n.

  1. A grassy plain or pasture, especially surrounded by woodland; a glade.

[J.R.R. Tolkien — The Two Towers]