Fidelius
Latin · Boy · 3 syllables
Popularity & facts
Relative popularity index, 2010–2025Popularity over time
Popularity indexHistorical popularity from 1880–2025 · US Social Security Administration data
About the name Fidelius
Fidelius derives from the Latin word "fidelis," meaning "faithful" or "loyal," and is rooted in the Latin noun "fides" (faith, trust).
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Etymology
Fidelius derives from the Latin word "fidelis," meaning "faithful" or "loyal," and is rooted in the Latin noun "fides" (faith, trust). The name was primarily used in Christian contexts, particularly in medieval ecclesiastical communities, and gained modern recognition through J.K. Rowling's "Harry Potter" series with the Fidelius Charm.
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Sibling name ideas
Christian names that sit beautifully beside FideliusSimilar names you might like
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Names that sound like Fidelius
Phonetic match, not just spelling"Fidelis derives from the Latin adjective "fidelis," meaning "faithful" or "loyal," rooted in the Latin word "fides" (faith, trust)."
"Faith-Louise combines the English virtue name "Faith" (from Latin *fides*, meaning trust or belief) with "Louise," the feminine form of…"
""Faith-Elis" combines "Faith" from Latin *fides* (trust, belief) and "Elis," likely a variant of "Elise" from Hebrew *Elisheba* (God's oath),…"