The phrase "a centuries old system" is correct and usable in written English.
It can be used to describe a system that has been in existence for many centuries, often implying that it is traditional or deeply rooted in history.
Example: "The legal framework in this country is based on a centuries old system that has evolved over time."
Alternatives: "an age-old system" or "a system that has existed for centuries."
Madurai region has had a centuries old system of harvesting every bit of rainwater for use in agriculture and urban consumption through the system of interconnected tanks, canals, channels, and the Vaigai River.
The barter idea is catching on in a number of cities in Greece during these lean economic times, returning communities to a centuries old system but with a digital twist.
The new program could upgrade as many as 72 stations across a century-old system that is plagued by grime and has no doubt seen better days.
They fear it will lead to the gradual dismantling of a century-old system of state-run conservation, allowing private investors to gain a stake in some the most lucrative tourist sites in Italy.
Every issue facing colleges and universities today is exacerbated by a century-old system of governance that requires change, asserts former Princeton president William Bowen *58 in Locus of Authority: The Evolution of Faculty Roles in the Governance of Higher Education, written with Eugene Tobin.
Many of the now familiar tribulations of the city's subway system are self-inflicted: Chronic delays and overcrowding are rooted in a history of mismanagement by officials and elected leaders who have long neglected repairs and updates to a century-old system, where aging cars run on worn-out tracks and are controlled by antiquated signals.
SAN DIEGO--Astronomers have revised a century-old system of categorizing stars to include a new class of objects so cool that they barely shine in visible light.
Here's a century-old system, bearing the brunt of millions of passengers every day, that, for decades, went underinvested in by elected officials.
Here we are entering the 21st Centuries but the Judicial Systems we have are centuries old systems that were not upgraded with time.
And while the initiative is still very much a work in progress like with any century-old system, overhauling it isn't easy it represents yet another lesson in mass transit an ostensibly modern city like New York would do well to borrow from its counterpart overseas.
The long-term goal is a complete rethinking and streamlining of a half-century-old system that is now fragmented across 27 members of the European Union and an additional 12 nearby countries.
