Mesopotamia

Meso·po·ta·mia (mes′ə pə tā′mē ə)

1. ancient country in SW Asia, between the upper Tigris & Euphrates rivers: a part of modern Iraq
2. loosely the entire region between these rivers, extending to the Persian Gulf

Etymology: Gr mesopotamia(chōra), lit., (land) between rivers < mesos, mid + potamos, river, orig., rapids < IE base *pet-, to fall, rush at > feather