Assiduous

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Assiduous comes from the Latin adsiduus, which means sitting continuously in one place, engaged in an occupation, and ultimately from the verb sedere, to sit down, the source also of the English words sedate (suh-DAYT) and sedentary (SED-’n-TER-ee). By derivation, assiduous means sitting down and working diligently until a job is done.

“assiduous”的词源可以追溯到拉丁语，与“坐下”或“持续地坐着”的概念有关。

1. 英语中的"assiduous"来源于拉丁词"assiduus"，该词源于动词"assidere"。
2. "assidere"是由前缀"ad-"和"sedere"组成的。
3. "ad-" 在拉丁语中意味着"to"或"toward"。
4. "sedere"在拉丁语中意味着"to sit"。

因此，“assiduous”在字面上可以理解为“持续地坐着的”。这描述了一个人持续、不断地在某处坐着从事某项工作，因此与勤勉、持续不懈或勤奋的概念有关。随着时间的推移，"assiduous"这个词在英语中逐渐获得了“勤勉”或“不懈”的含义。