Amalthea sits next to 4 phonetic neighbors — Althea, Amelia, and Thea are the closest matches by sound. Most share Amalthea's Greek-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"tender goddess, nourishing one"
"life, living"
"sun; dream (Sanskrit)"
"bracelet, ring"
"She who has the power of the horses"
"the younger one"
"friend; ally"
"land of abundance"
"shining light"
"from Ireland, Irish woman (from Erin)"
"Entertainment and Sports Programming Network"
"sun strength, powerful sun"
"place of happiness"
"virtuous, good woman"
"island meadow"
"pearl (via Scottish Maisie/Margaret)"
"my blessings have arrived"
"beautiful rose"
"thornbush clearing"
Similar sound: These names share phonetic patterns with Amalthea — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Amalthea.
Rhythm: Amalthea is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.