Decoding 'Ça fait des lustres': The Surprising History of a Common French Idiom

According to a recent report published by The Local on September 18, 2026, the common French expression "ça fait des lustres" has no literal connection to modern chandeliers or lighting fixtures, despite its linguistic roots. The publication detailed how the phrase, frequently translated as "ages" or "a very long time", actually derives from the ancient Roman method of counting years through five-year census periods known as "lustrum". Over centuries, the terminology evolved within the French language to describe an extended, indefinite duration rather than a specific chronological cycle. For multilingual Europe and expatriates living within the European Union's linguistic mosaic, understanding such idioms is essential for cultural integration and nuanced communication. France's rich linguistic heritage frequently features expressions where historical semantics diverge entirely from contemporary usage, reflecting broader European trends where regional languages preserve ancient administrative or social traditions within daily parlance. As cross-border mobility and intercultural exchanges continue to grow across the bloc, resources that demystify local idioms help bridge the gap for residents and language learners alike. Observers note that mastering these colloquialisms remains a key milestone for non-native speakers navigating professional and social environments in France, contributing to deeper societal cohesion.

Source: The Local. Read the original report ↗