Jacinta sits next to 4 phonetic neighbors — Hyacinth, Jacinda, and Lucinda are the closest matches by sound. Most share Jacinta's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"precious purple gemstone (jacinth)"
"lovely, beautiful"
"friend of power"
"victory"
"from Nájera (a city in Spain)"
"bright pledge, noble guarantee"
"moon"
"gift from God"
"radiant one"
"earth, land"
"sea, ocean"
"Yahweh has been gracious"
"she who rules the moon"
"daughter of Briseus"
"Latin feminine form of Jamie/James"
"new, praiseworthy"
"hazel tree or nut"
"lady, noblewoman"
"shining, bright one"
Similar sound: These names share phonetic patterns with Jacinta — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Jacinta.
Rhythm: Jacinta is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.