Aminetou is from the Hassaniya Arabic / Sahrawi Aminetou — Sahrawi-Mauritanian rendition of Arabic Amina (أَمِينَة — trustworthy, faithful, secure). Aminetou is one of the Sahrawi + Mauritanian feminine names — central to traditional Western Saharan + Mauritanian Hassaniya Arab-Berber heritage.
Aminetou 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 Aminetou reduce to 8, The Visionary. This is a traditional interpretive system, not a factual claim about the name.