Leven sits next to 5 phonetic neighbors — Levin, Levi, and Kevin are the closest matches by sound. Most share Leven's Scottish cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"elm (river or settlement by elm trees)"
"to sail at a steady speed"
"lake colony, settlement by the pool"
"cup, chalice"
"stone sword, sword stone"
"Lord, master"
"maple tree"
"of the sun, relating to the sun"
"thorn hedge enclosure"
"the Lord is righteous"
"urbane, sophisticated"
"bold land"
"gift of God"
"little king, kingly"
"invented name; variant of Milo (mild, merciful)"
"my God is Yahweh"
"to heal, to cure"
"tournament fighter, gladiator"
"charcoal hill"
"clover plant, good luck"
Similar sound: These names share phonetic patterns with Leven — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Brittonic/Gaelic origins, giving them the same cultural heritage as Leven.
Rhythm: Leven is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.