Mentewab (ምንትዋብ, c. 1706-1773) means "how beautiful" in Amharic. Built the grand palace of Qusquam outside Gondar and was one of the great patrons of Ethiopian Orthodox church architecture.
Mentewab 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 Mentewab reduce to 2, The Peacemaker. This is a traditional interpretive system, not a factual claim about the name.