Lenni sits next to 4 phonetic neighbors — Lenny, Lena, and Leona are the closest matches by sound. Most share Lenni's Scandinavian cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"brave as a lion"
"pure"
"courageous, bold"
"noble, nobility"
"just, righteous, upright"
"heathland, hay valley"
"wished-for child"
"pointed projectile; symbol of direction and purpose"
"desired, wished for"
"son of the gray-haired one"
"delicate, weak"
"bright light"
"dew of the sea"
"God is my refuge"
"new star by the lake"
"patient, steadfast"
"warrior spirit"
"my God is an oath"
"holy, blessed"
"night, dark beauty"
"each of the two"
Similar sound: These names share phonetic patterns with Lenni — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Germanic origins, giving them the same cultural heritage as Lenni.
Rhythm: Lenni is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.