Explore Words Kanji Grammar Guides

Copyright © 2026 Kotomora. All Rights Reserved.

Get the Kotomora apps for iOS and Android.

Explore Words Kanji Grammar Guides About Support Privacy

Copyright © 2026 Kotomora. All Rights Reserved.

永祚 (えいそ, eiso) Japanese meaning | Kotomora

永えい祚そ

え

い

そ

Meanings

1

Eiso era (989.8.8-990.11.7)

A specific Japanese era name (年号) used from August 8, 989 to November 7, 990 in the Gregorian calendar.

永えい祚そ元がん年ねんは西せい暦れき989年ねんにあたる。
The first year of the Eiso era corresponds to 989 CE.

Kanji

永eternity, long, lengthy
祚imperial throne, happiness

Etymology

The era name 永祚 (Eiso) was adopted during the reign of Emperor Ichijō. The exact derivation of the name is uncertain, but it follows the convention of using auspicious kanji compounds for era names.