obdurate · adjective1
- Latin · derived fromobdūrātus“hardened”
- Middle English · inherited fromobdurat(e)
- English todayobdurate
First attested in the 1450s, in Middle English; inherited from Middle English obdurat(e), borrowed from Latin obdūrātus (“hardened”), perfect passive participle of obdūrō (“to harden”) (see -ate (adjective-forming suffix)), from ob- (“against”) + dūrō (“to harden, render hard”), from dūrus (“hard”). Compare durable, endure.
obdurate · verb2
- Latin · borrowed fromobdūrātus
- English todayobdurate
Borrowed from Latin obdūrātus, see Etymology 1 and -ate (verb-forming suffix) for more
First known use, by meaning
- c. 1540-1860 To harden; to obdure.
Etymology from Wiktionary, CC BY-SA 4.0.