I. ˈd(y)u̇riŋ, -ür-, -rēŋ preposition
Etymology: Middle English, from present participle of duren to last — more at dure
1. : throughout the continuance or course of
no attainder of treason shall work corruption of blood or forfeiture except during the life of the person attainted — U.S. Constitution
2. : at some point in the course of
been away for a couple of weeks during the summer — J.M.Barzun
II. adjective
Etymology: Middle English, from present participle of duren to last
archaic : enduring , lasting