Feleica sits next to 4 phonetic neighbors — Felicia, Felicity, and Felice are the closest matches by sound. Most share Feleica's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"happy, fortunate, blessed"
"dear one, cherished"
"dear one, beloved darling"
"little one (diminutive suffix -ina)"
"Moon goddess; pledged to God"
"happy, fortunate"
"beloved, wished-for child"
"valley"
"calm, serene"
Similar sound: These names share phonetic patterns with Feleica — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Feleica.
Rhythm: Feleica is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.