Marlo sits next to 4 phonetic neighbors — Marlow, Carlo, and Harlow are the closest matches by sound. Most share Marlo's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"remnants of the lake"
"qualitative time, the fullness of time"
"rocky outcropping, cliff dweller"
"son of Ed, son of the wealthy guardian"
"eagle power, eagle ruler"
"lion strength"
"God has given, gift of God"
"son of the grey-haired one"
"wild garlic island"
"brave as a lion"
"variant of Pruitt, meaning valiant"
"fortified place, protection"
"beloved (David) + valley (Devon)"
"fortress, walled Roman camp"
"crew, team, group"
"fallow land, meadowland"
"one touched by good fortune"
"tailor, cutter of cloth"
"to tame, subdue"
"priest's meadow, clearing"
Similar sound: These names share phonetic patterns with Marlo — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English origins, giving them the same cultural heritage as Marlo.
Rhythm: Marlo is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.