Seynabou is from the Wolof / Pulaar Seynabou — West African rendition of Arabic Zaynab (fragrant flowering tree). Seynabou is one of the Senegalese feminine names — central to traditional West African Muslim heritage + the Senegalese reverence for Zainab bint Ali (Battle of Karbala 680 CE granddaughter of Prophet Muhammad). Wolof feminine name reflecting Mouride-Tijaniyya Sufi heritage.
Seynabou 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 Seynabou reduce to 3, The Communicator. This is a traditional interpretive system, not a factual claim about the name.