Ailsa derives its name from Ailsa Craig, the name of a rocky island located off of Scotland. Though the name’s origin doesn’t seem certain, it’s often been linked as being derived from Alfsigesey meaning “Álfsigr’s island”, Álfsigr an Old Norse male name meaning “elf victory” composed of Old Norse elements alfr (elf) + sigr (victory). Other meanings I’ve seen listed for it are “fairy rock” or “Elizabeth’s rock” but those don’t seem very likely.
Meaning: uncertain though it’s been linked to Alfsigesey “Álfsigr’s island”
Usage: Scottish, English