Snefrid (Snæfríðr) is from the Old Norse snær (snow) and fríðr (fair, beautiful) — "snow-fair." Snæfríðr Svásadóttir was the Sami princess whose enchanting beauty so captivated King Harald Fairhair of Norway that he neglected his kingdom for three years after her death.
Featured in Snorri Sturluson's Heimskringla.
Snefrid is a compound name. Its parts are friþu — each an attested element with a recorded meaning of its own.
Snefrid 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 Snefrid reduce to 3, The Communicator. This is a traditional interpretive system, not a factual claim about the name.