- Leda n
- [fr. L, the mother of Castor and Clytemnestra by her husband Tyndareus, and of Pollux and Helen by Zeus, who was wearing the form of a swan] 1 : a satellite of the planet Jupiter 2 : a girl's given name
- lethe n
- [L, fr. Gk Lethe, a river in Hades whose waters cause drinkers to forget their past, fr. lethe forgetfulness] : oblivion, forgetfulness
- lethargy n
- [fr. Gk lethargia, fr. lethargos forgetful, fr. lethe] : abnormal drowsiness
- lupine adj
- [L lupinus, fr. lupus, fr. Gk lykos wolf; assoc. with Lycaeon, who was turned into a wolf] : wolfish
- Lupus n
- a S constellation near the Milky Way, located between Centaurus and Scorpius
- lycanthropy n
- [fr. Gk lykanthrop(os) wolf-man, equiv. to lyk(os) wolf + anthropos man, the former of which, according to mythology, is from the name Lycaon, an Arcadian king transformed into a wolf for presuming to test the divinity of Zeus] 1 : a kind of insanity in which the victim imagines himself to be a wolf or other wild beast 2 : the fable's assumption of the form of a wolf by a human being
- lyceum n
- [L Lyceum, gymnasium near Athens where Aristotle taught, fr. Gk Lykeion, fr. lykeios, epithet of Apollo] 1 : a hall for public lectures or discussions 2 : an association providing public lectures, concerts, and entertainments
- lycosid n
- [fr. Gk lykos wolf] : a spider of the family Lycosidae, compromising the wolf spiders
