Jahsai sits next to 4 phonetic neighbors — Josiah, Jasai, and Jazai are the closest matches by sound. Most share Jahsai's Hebrew-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"God supports"
"peaceful, tranquil"
"new settlement"
"apparent, visible"
"little fire (via Aidan)"
"gift of God"
"elder, presider"
"bird-like, of the birds"
"great homestead, large settlement"
"spike, pointed"
"spear ruler"
"firm belief in reliability"
"crafty, wily"
"blameless and complete before God"
"beautiful, handsome"
"modern creative compound: Ke- + Andre"
"modern phonetic respelling of Caden/Caiden"
"possessor of goodness, kingly"
"enchantment, supernatural power"
"roses"
"large settlement, big homestead"
Similar sound: These names share phonetic patterns with Jahsai — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Jahsai.
Rhythm: Jahsai is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.