from The American Heritage® Dictionary of the English Language, 4th Edition
- An unincorporated community of west-central Maryland northwest of Rockville. It is the site of a US Department of Energy facility. Population: 55,400.
- A residential section of Philadelphia, Pennsylvania. Settled in 1683, it was the site of a Revolutionary War battle (October 4, 1777) in which George Washington's troops unsuccessfully attacked the British encampment. The original township was annexed by Philadelphia in 1854.
- A town of extreme southwest Tennessee, a suburb of Memphis. Population: 37,500.
from The Century Dictionary and Cyclopedia
- n. A carryall with a standing top, first built at Germantown, Pennsylvania, in 1816: the first vehicle of the class known as a rockaway.
Sorry, no etymologies found.