Etymology of the English word era
the English word
eraderived from the Late Latin word
aera (darnel; parameter from which a calculation is made; item of account; era)
derived from the Late Latin word
aes (money, pay, fee)
derived from the Proto-Indo-European root
*ayes-Date
The earliest known usage of era in English dates from the 17th century.
Cognates
Dutch
era, French
ère, German
Ära, Norwegian
ära, Swedish
era