Old Norse :wikt:hǫrgr|hǫrgr means "altar, sanctuary"; Old English :wikt:hearg|hearg "holy grove; temple, idol"; and Old High Germanharug continues a Proto-Germanic:wikt:Reconstruction:Proto-Germanic/harugaz|*harugaz, possibly cognate with Insular Celticcarrac "cliff".
Old Norse tradition
Literary
The term hörgr is used three times in poems collected in the Poetic Edda. In a stanza early in the poem Völuspá, the völva says that early in the mythological timeline, the gods met together at the location of Iðavöllr and constructed a hörgr and a hof :
In the poem VafþrúðnismálGagnráðr engages in a game of wits with the jötunnVafþrúðnir. Gagnráðr asks Vafþrúðnir whence the Van god Njörðr came, for though he rules over many hofs and hörgar, Njörðr was not raised among the Æsir :
In the poem Hyndluljóð, the goddess Freyja speaks favorably of Óttar for having worshiped her so faithfully by using a hörgr. Freyja details that the hörgr is constructed of a heap of stones, and that Óttar very commonly reddened these stones with sacrificial blood :
Epigraphic
The place name Salhøgum, that is mentioned on a 9th-century Danish runestone known as the Snoldelev Stone, has a literal translation which combines Old Norse sal meaning "hall" with hörgar "mounds," to form "on the hall mounds," suggesting a place with a room where official meetings took place. The inscription states that the man Gunnvaldr is the þulaR of Salhøgum, which has been identified as referring to the modern town Salløv, located in the vicinity of the original site of the runestone.
Toponymy
Many place names in Iceland and Scandinavia contain the word hörgr or hörgur, such as Hörgá and Hörgsdalur in Iceland and Harg in Sweden. When Willibrord Christianized the Netherlandsthe church of Vlaardingen had a dependency in Harago/Hargan, currently named Harga. This indicates that near those places there was some kind of religious building in medieval times.
Old English tradition
In the interpretation of Wilson, Anglo-Saxon Paganism, hearg refers to "a special type of religious site, one that occupied a prominent position on high land and was a communal place of worship for a specific group of people, a tribe or folk group, perhaps at particular times of the year", while a weoh, by contrast, was merely a small shrine by the wayside. Beowulf has the compoundhærgtrafum in the so-called "Christian excursus", translated as "tabernacles of idols" by Hall. Following the regular evolution of English phonology, Old English hearg has become harrow in modern English placenames. The London Borough of Harrow derives its name from a temple on Harrow Hill, where St. Mary's Church stands today. The name of Harrow on the Hill was adopted into Latin as Herga super montem; the Latinized form of the Old English name is preserved in the name of Herga Road in Harrow.