This dictionary does not give etymologies.这部词典不介绍词源.Dictionaries are still good for obscure usages and etymologies.字典依然擅长于不常用的用法和词源.The branch of linguistics that deals with etymologies.词源学有关词源的一门语言学分支....

n.词源学，词源说明( etymology的名词复数 )...

etymologies的音标：...