Devorah is from the Hebrew Dəvōrāh (דְּבוֹרָה — bee). Devorah (Deborah) is the fourth Judge of Israel prophetess warrior + the only female Judge in the Hebrew Bible (Judges 4-5, c. 12th c.
Devorah 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 Devorah reduce to 1, The Leader. This is a traditional interpretive system, not a factual claim about the name.