WEBSTER'S Word of the Day - JALOUSIE

jalousie
noun | JAL-uh-see

Definition:

1 : a blind with adjustable horizontal slats for admitting light and air while excluding direct sun and rain

2 : a window made of adjustable glass louvers that control ventilation

Etymologists are clear on the source of the word jalousie—it's French for "jealousy"—but the relationship between the emotion and the window treatments originally referred to as jalousies is not something they've speculated much about. Is it that those peering out through the original jalousie blinds were jealous of the people outside? Or is it more likely that the jealousy festered in the hearts of those outside, who could see the blinds but not the faces and lives of the people they hid? This excerpt from the October 23, 1766 entry in the Duchess of Northumberland's diary perhaps provides a clue: "Rows of Seats with Jalousies in Front that [the women] may not be seen."

Examples

The rooms of the little bungalow were protected from the brutal tropical heat by wooden jalousies.

"All the old jalousies have been replaced with new windows framed in mahogany, but many interior doors and much of the original hardware have been retained." — Christine Davis, The Palm Beach Daily News, 14 July 2011

source - Merriam-Webster's Dictionary