Aster sits next to 3 phonetic neighbors — Esther, Astra, and Astrid are the closest matches by sound. Most share Aster's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"star"
"firstborn daughter"
"first growth of spring"
"lake from Scotland"
"from Ing, Norse deity of fertility"
"brave ruler, powerful"
"strength (from Ava/Germanic)"
"strong and hardy"
"beautiful eyes"
"honey, sweet"
"from Calais"
"bird-like, avian"
"olive, peace"
"from Seoni, place of the forest"
"ancient, enduring"
"grace, kindness, beauty"
"divine protection, helmet of the gods"
"God is gracious"
"divine strength (from Osbourne)"
"from Massy, France (place name origin)"
"God is gracious"
Similar sound: These names share phonetic patterns with Aster — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Aster.
Rhythm: Aster is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.