Subjunctive

Salopia, as you might have deduced, is the Latin word for Shrewsbury, whose etymology is pretty interesting. I reproduce the explanation from Wikipedia here:

The town was the early capital of the Kingdom of Powys,^[9] known to the ancient Britons as Pengwern, signifying “the alder hill”;^[10] and in Old English as Scrobbesburh (dativeScrobbesbyrig), which may mean either “Scrobb’s fort” or “the fortified place in the bushes” (or “shrubs”, the modern derivate).^[11] This name gradually evolved in three directions, into Sciropscire, which became Shropshire; into Sloppesberie, which became Salop / Salopia (an alternative name for both town and county), and into Schrosberie, which eventually became the town’s name, Shrewsbury.^[10] Its later Welsh name Amwythig means “fortified place”.^[12]