lens [L17th] Lens means ‘lentil’ (ME, from the same word) in Latin. The word was used for a lens because it is the same shape.
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。