Urd (Urðr) is from the Old Norse urðr (fate, that which has become). Eldest of the three Norns — the Norse goddesses of fate — representing the past, what has been. Her well, the Well of Urd at the foot of Yggdrasil, is the source of all destiny.
Featured in the Poetic Edda and Prose Edda.
Urd 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 Urd reduce to 7, The Seeker. This is a traditional interpretive system, not a factual claim about the name.