According to Herodotus, Labda (Ancient Greek: Λάβδα) was a daughter of the Bacchiad Amphion, and mother of Cypselus, by Eetion. [1] Her name was derived from the fact of her feet being turned outward, and thus resembling the letter lambda (Λ), [2] which, by the accounts of the most ancient Greek grammarians, was originally pronounced labda.