What does RUIS stand for?
What does RUIS mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: RUIS.
What does RUIS mean?
- Ruis is the fifteenth letter of the Ogham alphabet, derived from ruise "red". Its Proto-Indo-European root was *reudh- 'red'. Its phonetic value is [r].