Patacara is from the Pali pata (cloak) and cara (walker). Patacara lost her husband, two sons, parents, and brother in a single day's series of tragedies — wandering naked in grief, she came to the Buddha, who healed her mind. She became foremost in mastery of the Vinaya (monastic discipline) and famous for her teachings to mothers who had lost children.
Featured in the Therigatha and Dhammapada commentary.
Patacara 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 Patacara reduce to 7, The Seeker. This is a traditional interpretive system, not a factual claim about the name.