Lemon sits next to 3 phonetic neighbors — Lemon, Lennon, and Leona are the closest matches by sound. Most share Lemon's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"the lemon fruit"
"oak tree"
"shining, bright one"
"pledge, oath (possible Celtic origin)"
"warlike, martial"
"God is gracious"
"noble"
"my God is an oath"
"hazel tree, the hazelnut shrub"
"woman of honor"
"child of heaven"
"bright, shining"
"pure, clean"
"bear strength"
"defender of the people"
"American coinage blending Da- prefix with Aisha"
"northeast wind"
"truthful, honorable"
"daughter of the sun (folkloric)"
"pledged to God (via Susannah)"
"beam of light"
Similar sound: These names share phonetic patterns with Lemon — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Arabic laymun via Old French origins, giving them the same cultural heritage as Lemon.
Rhythm: Lemon is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.