The origin of the name "Shropshire" is the Old English "Scrobbesbyrigscir" (Shrewsburyshire). However, the Normans who ruled England after 1066 found both "Scrobbesbyrig" and "Scrobbesbyrigscir" difficult to pronounce so they softened them to "Salopesberia" and "Salopescira". Salop is the abbreviation of these.
When a council for the county was set up in 1888, it was called "Salop County Council". The name was never popular, and the council renamed itself "Shropshire County Council" in 1980. However, the term "Salopian", derived from "Salop", is still used to mean "from Shropshire". The latin motto of "Floreat Salopia" (may Shropshire flourish) is also used for Shropshire on crests and emblems.
Salop can also mean the county town, Shrewsbury, and in historical records Shropshire is described as "the county of Salop" and Shrewsbury as "the town of Salop".