| lituus | n. | curved military horn | ||
| livid | adj. | furious; dark gray-blue | ||
| loath | adj. | unwilling, averse, reluctant | ||
| loathe | v. | to detest, to feel disgust for or towards | ||
| lobar | adj. | of or related to a lobe | ||
| loc | n. | dreadlocks | ||
| local | n. | neighborhood pub, habitual bar | British | |
| lock-in | n. | private party after hours at British pub where customers are ‘locked in’ after closing time and keep on drinking | British | |
| locum tenens | n. | temporary replacement for permanent employee, esp. for doctor or clergymen | Latin | |
| loggerhead | n. | blockhead, dunderhead; long-handled iron implement with bulb or ball on the end used for heating liquids or melting tar; post at stern of whaleboat for wrapping a line to | ||
| logomachy | n. | contention or dispute about words | ||
| logorrhea | n. | incessant loquacity; pathological talkativeness | ||
| logothete | n. | administrative executive in Byzantine empire or its successor states | ||
| logy | adj. | dull in thought or movement | ||
| loid | v. | to unlock a door by sliding a thin piece of plastic or celluloid between the door and frame, releasing simple spring latches; a device so used | slang | |
| lollop | v. | to move with bounds and leaps | ||
| longanimity | n. | patient suffering, forbearance | ||
| longanimously | adv. | with forbearance or patience | ||
| longeron | n. | load-bearing brace or frame running lengthwise in an airplane’s fuselage, or spanwise in its wing structure | ||
| loosestrife | n. | common name of flowering plants of two distinct genera: Lythrum and Lysimachia | ||
| lorica | n. | cuirass or corselet of leather | ||
| lorn | adj. | forsaken; desolate | ||
| lornly | adv. | forlornly, in a pitifully sad or lonely manner | ||
| lose one’s rag | v. | to lose one’s temper, to go apeshit, to blow one’s top | slang | |
| losel | n. | wastrel, scoundrel, profligate | ||
| lote | n. | lotus | archaic | |
| lough | n. | pool, lake | ||
| lour | v. | (variant of lower) to look dark or threatening (esp. of the sky or weather); to glower | ||
| lout | v. | to bow, to stoop | archaic | |
| lovelock | n. | long lock of hair, often braided, left apart from bulk of hair to lie over the heart, fashionable in 16th & 17th Centuries | ||
| lower | v. | to scowl or to frown, to appear sullen; to look dark and threatening (esp. of the sky) | ||
| lubricious | adj. | lascivious, lustful | ||
| lubricous | adj. | slippery, smooth and oily; unsteady; lubricious (q.v.) | ||
| lucerne | n. | alfalfa | ||
| lucubrate | v. | to write or to study intensely, esp. at night | ||
| luculent | adj. | lucid, clear; brilliant | ||
| Lucullian | adj. | lavish, profligate | ||
| ludibrund | adj. | playful | ||
| lugsail | n. | asymmetrical four-cornered sail obliquely hung upon a yard | ||
| lugubriously | adv. | mournfully | ||
| lumber | v. | to encumber, to obstruct or heap | ||
| lumber room | n. | storeroom in domicile used for oddments and unused furniture | ||
| lumme | int. | expressing surprise | British | |
| lummox | n. | clumsy dummy | ||
| lurcher | n. | crossbred dog (traditionally of collie with greyhound) favored by poachers for catching rabbits | ||
| lurdan | n. | sluggard, lazy person | ||
| lustrate | v. | to purify by propitiatory sacrifice or rites | ||
| lustre | n. | chandelier; cut glass object hung pendant from a chandelier | ||
| lustrine | n. | glossy fabric of silk; lutestring | ||
| lustrum | n. | five year period |
