Maltet (translated Malte in the fan translations) is a S-Ranked lance formerly wielded by one of the Eight Heroes, Barigan, during The Scouring. It is known as the "Spear of Snow and Ice," and is obtained in a Gaiden chapter if the route to Ilia was taken; to access it, Shanna, Thite, Juno, and Zelots must be alive (but they don't all have to be in the chapter). If the route to Sacae was taken instead, Jodel will have Maltet in his inventory when he joins your party. Like the other Legendary Weapons of Elibe, Maltet will do triple damage to Wyvern Riders, Wyvern Lords, and Manaketes.
In the medieval epic poem The Song of Roland, which inspired most of the Eight Heroes' names or weapons, Maltet is the name of the spear of Baligant, the emir of the ambiguously described Muslim kingdoms from across the sea. As Baligant--and muslims in general--are portrayed negatively in this poem, 'Maltet' probably comes from the words 'mal' meaning 'bad' or 'evil,' and 'tete,' meaning 'head' in French.