Xai sits next to 3 phonetic neighbors — Zai, Kai, and Sai are the closest matches by sound. Most share Xai's African-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"life, alive"
"something secret or unknown, a religious secret rite"
"Ireland or land of abundance"
"Night; dark beauty"
"lord of goals, ruler of aims"
"God is gracious, beautiful lake"
"noble one from the valley"
"valley, dale"
"coined name with no single origin"
"Son of Aodh (fire god)"
Similar sound: These names share phonetic patterns with Xai — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have African/Xhosa origins, giving them the same cultural heritage as Xai.
Rhythm: Xai is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.