Najmeh is from the Persian نجمه (Najmeh — star) — from Arabic najm (star). Najmeh is one of the Persian feminine names — central to traditional Persian + Muslim heritage. Persian feminine name reflecting Persian-Arabic astronomical heritage.
Najmeh 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 Najmeh reduce to 6, The Nurturer. This is a traditional interpretive system, not a factual claim about the name.