Khady is from the Senegalese-Wolof rendition of Khadija — from the Arabic Khadījah (premature child, early dawn). Khady is one of the Senegalese + Malian + Gambian feminine names — central to traditional West African Muslim heritage devotion to Khadija bint Khuwaylid (c.
Khady 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 Khady reduce to 4, The Builder. This is a traditional interpretive system, not a factual claim about the name.