Endelienta is a Cornish name — Saint Endelienta was a 6th-century Cornish saint, said to be the daughter of Brychan (legendary king of Brycheiniog) and goddaughter of King Arthur. The parish of St. Endellion in Cornwall bears her name.
Endelienta is rare but rising as Cornish heritage is celebrated.
Endelienta 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 Endelienta reduce to 8, The Visionary. This is a traditional interpretive system, not a factual claim about the name.