Moon sits next to 3 phonetic neighbors — June, Lune, and Dune are the closest matches by sound. Most share Moon's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"the moon; lunar"
"son of Oda"
"cup, chalice"
"of Saturn, god of agriculture and time"
"lake, pool, waterfall"
"son of Brayden"
"olive warrior"
"spear wood (ash was used for spears)"
"God is willing"
"who is like God"
"plant that grows in moist places"
"precious, greatly valued thing"
"old friend, wise friend"
"the laughing one"
"short; courtly"
"settlement by the bridge"
"three-leafed symbol of fortune"
"bridge town"
"gift of God"
"pasture in a marsh"
"narrow piece of land"
Similar sound: These names share phonetic patterns with Moon — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have English origins, giving them the same cultural heritage as Moon.
Rhythm: Moon is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.