The following is the results of your search for decapoils.
Decapoils: Ten cities = deka, ten, and polis, a city, a district on the east and
south-east of the Sea of Galilee containing "ten cities," which were
chiefly inhabited by Greeks. It included a portion of Bashan and
Gilead, and is mentioned three times in the New Testament
(Mark 5:20; 7:31) These cities were Scythopolis, i.e., "city of the
Scythians", (ancient Bethshean, the only one of the ten cities on the
west of Jordan), Hippos, Gadara, Pella (to which the Christians fled
just before the destruction of Jerusalem), Philadelphia (ancient
Rabbath-ammon), Gerasa, Dion, Canatha, Raphana, and Damascus. When
the Romans conquered Syria (B.C. 65) they rebuilt, and endowed with
certain privileges, these "ten cities," and the province connected
with them they called "Decapolis."