Eponymy and Toponymy
Numerous place names in Scandinavia contain the Old Norse name Þórr. The identification of these place names as pointing to religious significance is complicated by the aforementioned common usage of Þórr as a personal name element. Cultic significance may only be assured in place names containing the elements -vé (signifying the location of a vé, a type of pagan Germanic shrine), -hof (a structure used for religious purposes, see heathen hofs), and -lundr (a holy grove). The place name Þórslundr is recorded with particular frequency in Denmark (and has direct cognates in Norse settlements in Ireland, such as Coill Tomair), whereas Þórshof appears particularly often in southern Norway.
In English placenames, Anglo-Saxon Thunor (in contrast with the Old Norse form of the name, later introduced to the Danelaw) left comparatively few traces. One example is Thundersley, from a *Thunores hlæw (directly cognate to the above mentioned Old Norse Þórslundr). A second example is Thurstable (Old English "Thunor's pillar").
In what is now Germany, locations named after Thor are sparsely recorded, but an amount of locations called Donnersberg (German "Donner's mountain") may derive their name from the deity Donner, the southern Germanic form of the god's name.
In as late as the 19th century in Iceland, a specific breed of fox was known as holtaþórr ("Thor of the holt"), likely due to the red coat of the breed. In Sweden, 19th century folk belief is recorded as having held that smooth, wedge-shaped stones found in the earth (Thunderstones) are called Thorwiggar ("Thor's wedges"), and whose origins were explained as having been once hurled at a troll by the god Thor. Similarly, meteorites may be considered memorials to Thor in folk tradition due to their sheer weight. On the Swedish island of Gotland, a species of beetle (scarabæus stercorarius), was named after the god; the Thorbagge. When the beetle is found turned upside down and one flips it over, Thor's favor may be gained. In other regions of Sweden the name of the beetle appears to have been demonized with Christianization, where the insect came to be known as Thordedjefvul or Thordyfvel (both meaning "Thor-devil").
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