Late 19th century. From ancient Greek ϕαλλός penis, image of the (usually erect) penis, especially as a symbol of the generative power in nature from the same Indo-European base as classical Latin follis bellows.
英语词典包含243303条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。