chiliad

The old oak tree in the park has stood there for a chiliad.

用法提示：这里的 chiliad 是名词，表示“一千年”这个时间段。

Historians believe this festival began more than a chiliad ago.

用法提示：chiliad 在此作名词，指“一千年”，与 ago 搭配表示时间。

A chiliad has passed since the stone bridge was first built.

用法提示：chiliad 作名词，作句子的主语，指“一千年”的时长。