The word forms the legal terms
1) diutinus – which means lasting a long time, enduring, long-lived. For example, in the Commercial Law, for some products or items the manufacturer may offer a long-term warranty.
2) Diutius – which means longer, too long (a period of time). In the Law of Contracts, if a performance of contract is delayed too long, then the creditor may lose interest in performance and respectively, the claim the contract void.
3) Diuturnus - lasting a long time, of long duration. In practice, author’s rights receive legal protection for a long time.