'era'はこちらの項目にも見つかりました。
英語の見出し語に対する説明:
age
- anachronism
- ancient
- atavism
- BCE
- bygone
- capote
- CE
- classical
- classical music
- contemporaneous
- date
- day
- Devonian
- epoch
- epochal
- for the time
- Gilded Age
- hark back
- historical fiction
- historical novel
- horse-and-buggy
- in the time of
- neolithic
- old days
- old times
- period
- period style
- prehistoric times
- quaternary
- time
- up to the time of
- vintage
- world
- yesterday