Wellington sits next to 3 phonetic neighbors — Ellington, Pennington, and Harrington are the closest matches by sound. Most share Wellington's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"from the wealthy estate, prosperous settlement"
"lord, nobleman"
"paw, claw"
"respectable, virtuous"
"highest point, mountaintop"
"victory of the people"
"modern variant combining Arabic root with contemporary spelling"
"cleric, church official"
"pilgrim, traveler, wanderer"
"healthy, wise"
"volcanic tuff (durable rock)"
"knife, cutting blade of a plow"
"dark one, descendant of the dark one"
"God strengthens, Yahweh strengthens"
"brown one, the brown bear"
"glowing coal, burning ember"
"God is gracious"
"fame, glory (folk etymology)"
"from the white settlement"
"made of earth, red earth"
"son of Myer/Meyer"
Similar sound: These names share phonetic patterns with Wellington — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English 'Weola-ingtun' origins, giving them the same cultural heritage as Wellington.
Rhythm: Wellington is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.