Edurne is the Basque word for "snow" — derived from elur.
Edurne Pasaban (born 1973), the Spanish-Basque mountaineer, was the first woman to climb all 14 of the world's 8,000-meter peaks.
Edurne does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
In Pythagorean numerology the letters of Edurne reduce to 4, The Builder. This is a traditional interpretive system, not a factual claim about the name.