英语词汇pen的发音释义、词根词缀、结构分析、同源词、词频及词根记忆法-英语词根词缀词典

词汇	pen
词根词缀	pen 钢笔，笔尖来自拉丁语penna, 羽毛，翎，来自PIE→petna, 展开，翅膀，来自pet, 展开，词源同feather, compete。原指鸟翎制成的笔，后词义通用化。拼写比较pan, patella.
随便看	the metric system the Middle Ages the Milky Way the missionary position the Monroe Doctrine the morning star then thence thenceforth the netherworld the nitty-gritty the Northern Lights the North Pole the Noughties the Occident theocracy theodolite the Old Bailey the Old Bill theology the Olympic Games theophany theorem theoretical theorist

英语词根词缀词典收录了25228条英语词根词缀词条，基本涵盖了全部常用英语词汇的词根、词缀及词根记忆法解析，是记忆英语词汇的必备工具。