What is the meaning of Einen?

accusative masculine singular of ein

accusative masculine singular of ein: a, an

inflection of einer:

1. strong/weak accusative masculine singular
2. weak genitive/dative all-gender singular
3. weak all-case plural

strong/weak accusative masculine singular

weak genitive/dative all-gender singular

weak all-case plural

to unite

to come to terms

Rōmaji transcription of えいねん

plural of ein

Source: wiktionary.org