etymology 词源学
etymological 词源的
root 词根
origin 起源
A: What is the etymon of the English word 'father'?
A：英语单词“father”的词源是什么？
B: The etymon can provide deep insights into historical shifts.
B：词源可以为历史变迁提供深刻的见解。
1) 构成单词的原形词
2) 语言演化的源头
1. 词源，原形词
noun
1. a word or morpheme from which a later word is derived
Synonym: root, origin