Jofur is a name used in Nordic

Nordic countries

The Nordic countries make up a region in Northern Europe and the North Atlantic which consists of Denmark, Finland, Iceland, Norway and Sweden and their associated territories, the Faroe Islands, Greenland and Åland...

 literature for the thunder god, mainly as a synonym for Jupiter. Jofur probably originated in the writings of the 17th century Swedish scientist and writer Olaus Rudbeckius, and has since been used in Nordic poetry, mainly during the Baroque

Baroque

The Baroque is a period and the style that used exaggerated motion and clear, easily interpreted detail to produce drama, tension, exuberance, and grandeur in sculpture, painting, literature, dance, and music...

 and Rococo

Rococo

Rococo , also referred to as "Late Baroque", is an 18th-century style which developed as Baroque artists gave up their symmetry and became increasingly ornate, florid, and playful...

 eras. Jofur (as a god) does not appear in Norse mythology

Norse mythology

Norse mythology, a subset of Germanic mythology, is the overall term for the myths, legends and beliefs about supernatural beings of Norse pagans. It flourished prior to the Christianization of Scandinavia, during the Early Middle Ages, and passed into Nordic folklore, with some aspects surviving...

, even though the word was also used as an honorary title for kings and heroes.

Sources

• Nordisk familjebok
  Nordisk familjebok
  Nordisk familjebok is a Swedish encyclopedia, published between 1876 and 1957.- History :The first edition was published in 20 volumes between 1876 and 1899. The first edition is known as the "Iðunn edition" because of the picture of Iðunn on the cover...
  
  's article on Jofur (in Swedish)
• Mytologin i Bellmans diktning from Bellmansällskapet (in Swedish)