Dynasty in Chinese / Japanese...

代 is the word used to designate dynasties in Asia.

代 alone can mean generation; age; period; historical era; eon; world; society; reign; era. 代 comes after the name of the dynasty, for example, the Tang Dynasty is the “Tang Dai” in Chinese.

Some have suggested that the word dynasty comes from the Chinese word “dai” (as “dai” sounds like the first syllable of a dynasty). However, the word dynasty is derived from the Greek word δυναστεία (dunasteia) meaning lordship and/or domination.

Sometimes this word is used in a different context where it can mean to represent or substitute. In this case, it can mean representative of; on behalf of; acting for, e.g. to offer incense in place of another.

In ancient Japan, this could also be a “shiro” (a unit of land area equal to one-fiftieth of a tan or about 20 square miles).