Name and sound values
Óss is a historically transmitted name of the rune and denotes god in Icelandic, estuary in Norwegian. In the Younger Futhark the sign could cover the sound values /o/ą/æ/.
Reducing the row from 24 to 16 signs meant that one rune wrote several different sounds. The correct reading therefore depends on vocabulary, grammar, and inscriptional context.
Historical use
Younger runes primarily served writing: on memorial stones, everyday objects, ownership marks, and short messages. Magical inscriptions exist, but they do not turn every rune into an independent magical sign.
The Norse rune poems
The Norwegian and Icelandic rune poems do comment on the sixteen Younger Futhark runes. They survive, however, only through medieval manuscripts and may transmit divergent imagery.
Sound change produced homonymy: the two poems explain the same rune name differently. Both traditions must remain visible.
Modern interpretation
Present-day practice may use Óss as a symbolic field for “god in Icelandic, estuary in Norwegian”. Such reflection is modern; the rune poems offer images and mnemonics, not a complete surviving system for drawing individual oracle stones.
Rune poems in the original
Old Norwegian
Norwegian Rune Poem
Óss er flæstra færða fǫr; en skalpr er sværða.The river-mouth is the way of most journeys; the scabbard is the way of swords.
A sense-based working translation. The second line is often an independent gnomic statement; a direct semantic link to the rune must not be assumed.
Old Icelandic
Icelandic Rune Poem
Óss er algingautr ok ásgarðs jöfurr ok valhallar vísi.The god is ancient Gautr, the ruler of Ásgarðr, and the lord of Valhǫll.
Gautr is a by-name of Óðinn; the stanza preserves the older meaning “god”, whereas the Norwegian version interprets Óss as an estuary.