Osnat is from the Hebrew אָסְנַת (ʾOsnaṯ — belonging to Neith, dedicated to Neith) — Hebrew rendition of Egyptian Iset-Net (Isis-Neith). Osnat is one of the Hebrew feminine names — central to traditional Jewish heritage. subject of pan-Hebrew patriarchal-narrative heritage. Hebrew feminine name reflecting biblical Egyptian-Hebrew heritage.
Osnat 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.
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In Pythagorean numerology the letters of Osnat reduce to 6, The Nurturer. This is a traditional interpretive system, not a factual claim about the name.