U+16C1 "ᛁ" Runic Letter Isaz Is Iss I Unicode Character

U+16C1 "ᛁ" Runic Letter Isaz Is Iss I is a character from the Elder Futhark runic alphabet, representing the rune known as *Isaz* in Proto-Germanic and as *Is* or *Iss* in Old Norse and Old English contexts. This rune symbolizes the concept of "ice" and carries meanings related to stillness, cold, and the potential for preservation or obstruction, often associated with the god Ymir in Norse mythology. Its shape consists of a single vertical line, reflecting both simplicity and the rigid, elemental nature of ice, and it corresponds to the letter 'I' in transliteration. In historical usage, it appears in runic inscriptions across Scandinavia and Anglo-Saxon England, where it was used for writing as well as in magical or divinatory practices.