Sky sits next to 3 phonetic neighbors — Kai, Skye, and Sly are the closest matches by sound. Most share Sky's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"sky, heavens"
"from the forest, woodland dweller"
"son of Gilbert, son of Gib"
"king, lord of the people"
"son of Carr, son of the marsh dweller"
"from the pool or marsh"
"lord, father, sovereign"
"swift projectile, arrow"
"divine spear, god's spear"
"God is my rock"
"venerable, revered"
"row of trees by the wood"
"belonging to the country, widely known"
"victory of the people"
"bright, clear, famous"
"fortunate, blessed"
"brave ruler, strong king"
"incomparable to God"
"lion strength"
"dweller at the untilled ground"
"name of God"
Similar sound: These names share phonetic patterns with Sky — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old Norse origins, giving them the same cultural heritage as Sky.
Rhythm: Sky is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.