Summit sits next to 4 phonetic neighbors — Summit, Summitt, and Sonnet are the closest matches by sound. Most share Summit's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"peak, highest point"
"name of indigenous Scandinavian people"
"bequest, gift from the past"
"life"
"tall, lofty"
"merciful, gracious"
"lily flower"
"exalted one"
"western settlement"
"occupational surname meaning one who sews"
"divine warrior"
"defender, helper"
"life, living one"
"sun, throne"
"gazelle (Aramaic equivalent — this is the translation of Tabitha)"
"lake maiden"
"little honey, sweet one"
"beautiful face/expression"
"variant of Delilah (night, amorous)"
"blessing, unmerited favor"
Similar sound: These names share phonetic patterns with Summit — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old French/Latin origins, giving them the same cultural heritage as Summit.
Rhythm: Summit is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.