Jacy sits next to 5 phonetic neighbors — Jacie, Jacey, and Jaci are the closest matches by sound. Most share Jacy's Native American cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"moon, moonlight"
"peaceful, tranquil"
"bright, beautiful"
"grace, God is my oath"
"fair, white, smooth"
"gift of Yahweh"
"one who is exalted"
"she who intoxicates, great enchantress"
"my God is an oath"
"modern invented variant of Bria/Braya"
"star"
"pure"
"corn, golden grain"
"miraculous wonder, divine marvel"
"dark one, dark-haired"
"Wood prepared for building"
"beloved, dear one"
"divine play, cosmic game"
"rare, elegant material"
"herb garden estate"
"hillside meadow"
Similar sound: These names share phonetic patterns with Jacy — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Tupi-Guarani origins, giving them the same cultural heritage as Jacy.
Rhythm: Jacy is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.