Lucenia sits next to 4 phonetic neighbors — Lucinda, Lucia, and Luciana are the closest matches by sound. Most share Lucenia's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"light, illuminated one"
"rose, flower"
"ancestral heritage (via Olaf)"
"from Denzell (estate in Cornwall)"
"alder tree, from the alder grove"
"from the kingdom of Lothar, from the Lorraine region"
"One who tends or holds; occupational name related to tenner"
"graceful, beautiful"
"of silver, silvery"
"bright, shining one"
"the third month, heralding spring"
"lion-like"
"upright child; righteous child"
Similar sound: These names share phonetic patterns with Lucenia — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Lucenia.
Rhythm: Lucenia is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.