Reumah (רְאוּמָה) means "coral" or "lofty" in Hebrew. In Genesis 22:24, Reumah was the concubine of Nahor, Abraham's brother — mother of Tebah, Gaham, Tahash, and Maacah, ancestors of Aramean tribes.
Among the most obscure women named in Genesis.
Reumah 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 Reumah reduce to 3, The Communicator. This is a traditional interpretive system, not a factual claim about the name.