Erine is of Irish origin, meaning 'peaceful'. It's a unisex name, though it's more commonly used for girls. The name has been popular over the centuries and can be found in various spellings, such as Eirene, Erina, and Erin.
Irish Ireland
"Erine experienced steady popularity with 6 births each year from 1974 to 1975, resulting in a total of 12 babies named Erine during this period."