The Lelantine Plain (Ancient Greek: ÃÂ÷ûìýÃÂÿàÃÂõôïÿý or ÃÂîûñýÃÂÿý ÃÂõôïÿý; Modern Greek: ÃÂ÷ûìýÃÂùÿ ÃÂõôïÿ) is a fertile plain on the Greek island of Euboea, between Chalcis and Eretria. In the late eighth century BC a dispute over its possession was the cause of the Lelantine War. In the Middle Ages it was known as Lilanto; a Venetian document from 1439 describes a crisis caused by the powerful taking more than their share of the irrigation water: <blockquote> and so many plots have remained unirrigated, and if things continue like this, the place Lilanto, which is the life of this island, will turn into a desolation - a place which provides more utility to the Signoria than any other, through being the eye and garden of Euboea. </blockquote>
It is presumably named for the Lelantos River (Ancient Greek: ÃÂîûñýÃÂÿÃÂ), now the Lilas (Modern Greek: ÃÂîûñÃÂ), which runs through it, though ancient scholiasts derived it from the name of an otherwise unknown king Lelantos.