J

　　Justitia omnibus - Justice for all

　　K

　　Koming soon - Sorry, bad joke

　　L

　　Labera lege - Read my lips

　　Labor omnia vincit - Work conquers all things. (Virgil)

　　Labra lege - Read my lips

　　Lachryma Christi - Christ's tears

　　Lapsus alumni - Error made

　　Lapsus calami - A slip of the pen

　　Lapsus linguae - A slip of the tongue

　　Lapsus memoriae - A slip of the memory

　　Lapsus nivium! - Avalanche!!

　　Lares et penates - Household gods

　　Latet anguis in herba - A snake lies in the grass. (Vergil)

　　Latine dictum - Spoken in Latin

　　Latine loqui coactus sum - I have this compulsion to speak Latin

　　Latro! fremo! - Woof woof! Grrrr!

　　Laudant illa, sed ista legunt - Some (writing) is praised, but other is read. (Martialis)

　　Laudatores temporis acti - Praisers of time past

　　Laus Deo - Praise be to God

　　Lavdem virtvtis necessitati damvs - We give to necessity the praise of virtue finding the benefit in what's needful

　　Lectori Salutem (L.S.) - Greetings to the reader

　　Lectio brevior lectio potior - The shortest reading is the more probable reading

　　Lector benevole - Kind reader

　　Legatus a latere - Advisor from the side

　　Lege atque lacrima - Read 'em and weep

　　Lege et lacrima - Read it and weep

　　Legum servi sumus ut liberi esse possimus - We are slaves of the law so that we may be able to be free. (Cicero)

　　Leve fit, quod bene fertur, onus - The burden is made light which is borne well. (Ovid)

　　Lex clavatoris designati rescindenda est - The designated hitter rule has got to go

　　Lex domicilii - The law of a person's home country

　　Lex fori - The law of the forum (country)

　　Lex loci - The law of the place

　　Lex malla, lex nulla - A bad law is no law. (St. Thomas Aquinas)

　　Lex non scripta - The unwritten (common) law

　　Lex scripta - The written law

　　Lex talionis - The law of revenge

　　Libenter homines id quod volunt credunt - Men gladly believe that which they wish for. (Caesar)

　　Liberae sunt nostrae cogitationes - Our thoughts are free. (Cicero)

　　Liberate te ex inferis - Save yourself from hell

　　Libertas inaestimabilis res est - Liberty is a thing beyond all price. (Corpus Iuris Civilis)

　　Liberum arbitrium - Free will

　　Libra solidus denarius (L.S.D.) - Pounds, shillings, pence

　　Licentia liquendi - Liberty of speaking

　　Licentia poetica - Poetic licence. (Seneca)

　　Licet - It is allowed

　　Lingua franca - French tongue - the common or universal language

　　Literati - Men of letters

　　Litoralis - Beach bum

　　Litterae humaniores - The humanities

　　Loco citato (lc) - In the passage just quoted

　　Locum tenens - One occupying the place (used as an English noun meaning 'deputy')

　　Locus classicus - The most authoritative source, Classical passage

　　Locus delicti - The scene of the crime

　　Locus desperatus - A hopeless passage

　　Locus enim est principum generationis rerum - For place is the origin of things. (Roger Bacon)

　　Locus in quo - The place in which something happens

　　Locus poenitentiae - A place for repentance

　　Locus sigilli (l.s.) - The place of the seal

　　Locus standi - Place of standing

　　Longo intervallo - After a long gap

　　Loquitur (loq.) - He/she speaks

　　Luctor et emergo - I struggle but I'll survive

　　Luke sum ipse patrem te - Luke, I am your father. (Star Wars)

　　Lumen naturale - Natural light

　　Lupus est homo homini - Man is wolf to man

　　Lupus in fabula - The wolf in the tale (i.e. Speak of the wolf, and he will come) (Terence)

　　Lusus naturae - A freak of nature

　　Lux et veritas - Light and Truth

　　Lux mundi - The light of the world