Arignote (Ἀριγνώτη) combines the Greek ari (best) and gnōtē (known) — "famous in knowledge." Arignote (6th c. BCE) was the daughter of Pythagoras and Theano — sister of Damo — and a Pythagorean philosopher in her own right, author of treatises on the mysteries of Dionysus (now lost).
Featured in Suidas's Lexicon.
Arignote 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 Arignote reduce to 8, The Visionary. This is a traditional interpretive system, not a factual claim about the name.