Nancy sits next to 4 phonetic neighbors — Nanci, Nancie, and Angie are the closest matches by sound. Most share Nancy's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"favor, blessedness"
"noble, bright"
"turbulent, passionate (figurative)"
"from Britain, British woman"
"princess, noble lady"
"wise, knowledgeable"
"one who hunts"
"pearl"
"high"
"new"
"modern melodic invention"
"God is my oath"
"God is my joy"
"deep affection, devotion"
"one who gathers information, explorer"
"night, dark beauty"
"blessed"
"strength, virtue"
"throne, sun (alternate Persian/Greek etymology)"
"beautiful rose"
"she who destroys the light"
Similar sound: These names share phonetic patterns with Nancy — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Nancy.
Rhythm: Nancy is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.