Gwerful means "woman-strong" or "strong woman" in Welsh. Gwerful Mechain (c. 1460-c. 1502) was the only Welsh medieval female poet whose body of work survives in substantial quantity — she wrote across genres including religious devotion, married love, and strikingly explicit poems in defense of women's sexual pleasure and bodies (most famously Cywydd y Cedor, "Poem to the Vagina"). A bold voice centuries ahead of her time.
Gwerful 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 Gwerful reduce to 2, The Peacemaker. This is a traditional interpretive system, not a factual claim about the name.