Old English cognate of Adalbert (see Albert). This was the name of a Saxon king of England and two kings of Kent, one of whom was a saint. It became unused after the Normans introduced their form of Adalbert after their invasion.
From the Greek Αἴσωπος (Aisopos), which is of unknown meaning. This was the name of a Greek fabulist of the 6th century BC, famous for such tales as The Tortoise and the Hare. Though his existence is uncertain, he was later said to have been a slave on the island of Samos.
From the Greek name Αἰσχύλος (Aischylos), derived from αἶσχος (aischos) meaning “shame”. This was the name of a 5th-century BC Athenian playwright, known for his tragedies.