durable [ME] This came via Old French from Latin durabilis, from durare ‘to last, harden’. Obdurate [LME] comes from the same root.
英语词源词典收录了6069条英语词源词条，基本涵盖了全部常用英语词汇的起源、历史，是研究英语词汇或通过词源学英语的必备工具。