metrocomia

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.

mētrŏcōmĭa, ae, f., = μητροκωμία,

a village from which other villages have derived their inhabitants, a mother-village (post-class.), Cod. Th. 11, 24, 6; Cod. Just. 8, 10, 19.