gəˈstäl(ˌ)dō noun
( plural gastal·di -(ˌ)dē)
Etymology: Italian castaldo, gastaldo, from Medieval Latin castaldus, gastaldus, from a Lombard word akin to Old English gesteald abode, from ge- (perfective & collective prefix) + -steald (akin to Old English stealdan to possess); akin to Old High German hagu stalt day laborer, bachelor, Gothic ga staldan to acquire, possess, Old English steall place, position, stall — more at stall
1. : the representative of a king on his domains in medieval Italy especially among the Lombards
2. : a steward in a nobleman's household