- lave: To wash or bathe.
- lawgiver: A legislator.
- lawmaker: A legislator.
- lax: Not stringent or energetic.
- laxative: Having power to open or loosen the bowels.
- lea: A field.
- leaflet: A little leaf or a booklet.
- leaven: To make light by fermentation, as dough.
- leeward: That side or direction toward which the wind blows.
- left-handed: Using the left hand or arm more dexterously than the right.
- legacy: A bequest.
- legalize: To give the authority of law to.
- legging: A covering for the leg.
- legible: That may be read with ease.
- legionary: A member of an ancient Roman legion or of the modern French Legion of Honor.
- legislate: To make or enact a law or laws.
- legislative: That makes or enacts laws.
- legislator: A lawgiver.
- legitimacy: Accordance with law.
- legitimate: Having the sanction of law or established custom.
- leisure: Spare time.
- leniency: Forbearance.
- lenient: Not harsh.
- leonine: Like a lion.
- lethargy: Prolonged sluggishness of body or mind.
- levee: An embankment beside a river or stream or an arm of the sea, to prevent overflow.
- lever: That which exerts, or through which one may exert great power.
- leviathan: Any large animal, as a whale.
- levity: Frivolity.
- levy: To impose and collect by force or threat of force.
- lewd: Characterized by lust or lasciviousness.
- lexicographer: One who makes dictionaries.
- lexicography: The making of dictionaries.
- lexicon: A dictionary.
- liable: Justly or legally responsible.
- libel: Defamation.
- liberalism: Opposition to conservatism.
- liberate: To set free or release from bondage.
- licentious: Wanton.
- licit: Lawful.
- liege: Sovereign.
- lien: A legal claim or hold on property, as security for a debt or charge.
- lieu: Stead.
- lifelike: Realistic.
- lifelong: Lasting or continuous through life.
- lifetime: The time that life continues.
- ligament: That which binds objects together.
- ligature: Anything that constricts, or serves for binding or tying.
- light-hearted: Free from care.
- ligneous: Having the texture of appearance of wood.