Roosevelt sits next to 3 phonetic neighbors — Rosevelt, Rosewald, and Rozeldt are the closest matches by sound. Most share Roosevelt's Dutch-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"rose field, field of roses"
"a million (great abundance, infinite blessing)"
"messenger"
"blazing torch, flaming sword"
"man, manly"
"strict, disciplined"
"of the hawk"
"appointed by God"
"muddy place, ditch"
"associated with Al-Khidr, the immortal guide"
"king's portion"
"bright friend, fair valley"
"broad meadow, wide clearing"
"firm belief in reliability"
"homestead on the rock"
"God is gracious (from Javon/John roots)"
"belonging to the night"
"lunar, bright as the moon"
"bright, shining, evident"
"of the coin, of money"
"who is like God? (Michael, from Hebrew Mikha'el)"
Similar sound: These names share phonetic patterns with Roosevelt — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Dutch origins, giving them the same cultural heritage as Roosevelt.
Rhythm: Roosevelt is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.