The Collaborative International Dictionary
Obdured
Obdure \Ob*dure"\ ([o^]b*d[=u]r"), Obdured \Ob*dured"\ ([o^]b*d[=u]r"), a. Obdurate; hard. [Obs.]
This saw his hapless foes, but stood obdured.
--Milton.
Wiktionary
obdured
vb. (en-past of: obdure)