Where does “unlouvered” come from?

unlouvered (English) comes from English louvered, from English louver, from Middle English lover, from Old French lovier, from Medieval Latin *lōdārium.

unlouvered (English): Not louvered

Definitions

  1. Not louvered

Ancestry of “unlouvered”, step by step

unlouvered traces back through two separate lines of ancestry.

via English louvered

StepLanguageWordMeaning
1EnglishlouveredHaving louvers
2EnglishlouverA type of turret on the roof of certain medieval...
3Middle Englishloverlouver type of turret
4Old Frenchlovier
5Medieval Latin*lōdārium

via English un

StepLanguageWordMeaning
1EnglishunOne
Every word from Medieval Latin *lōdāriumEvery word from Old French lovierEvery word from Middle English lover