louver

Meaning

1. A type of turret on the roof of certain medieval buildings designed to allow ventilation or the admission of light.
2. A series of sloping overlapping slats or boards which admit air and light but exclude rain etc.
3. Any of a system of slits, as in the hood of an automobile, for ventilation.

Synonyms

louvre

fin

shutter

slat

lens hood

pale

picket

ribbon

🎀

roof-light

skylight

sliver

strip

sunshade

Venetian blind

hatten

light shield

luffer board

lens shade

board

glare shield

grille

jalousie

lath

Pronounced as (IPA)

/ˈluːvə/

Etymology

Inherited from Middle English: lover

In summary

Inherited from Middle English lover, from Old French lovier, lover (“skylight”), from Medieval Latin *lōdārium (attested as lōvārium), extension of lōdium, of unclear origin, but probably of Germanic origin and related to Frankish *laubijā (“shelter”).