Dure is an older English form meaning to endure or continue. In Matthew 13:21 it describes a person who does not endure persecution.
Definition
Dure is an older English form of “endure,” meaning to continue or remain firm under difficulty.
Biblical Usage
In Matthew 13:21, the King James Version uses “dure” of a person who does not endure persecution. The Revised Version uses “endureth.”
Historical Bible Dictionaries
International Standard Bible Encyclopedia (ISBE)
<p>dur (proskairos): Used for "endure" (which see), the King James Version Mt 13:21 (the Revised Version (British and American) "endureth").</p>