Haitham sits next to 4 phonetic neighbors — Haytham, Hatham, and Hisham are the closest matches by sound. Most share Haitham's Arabic-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"strong bird of prey"
"the handsome, the good"
"noble, exalted"
"mature, of sound judgment"
"knowledgeable, wise"
"the right time"
"nobleman, lord"
"black youth"
"bestow, grant"
"raised by God, wise"
"one who makes things easy, the fortunate one"
"virtuous, morally pure"
"righteousness of the religion/faith"
"patience, endurance, perseverance"
"praiseworthy"
"approval, divine pleasure"
"helper, God has helped"
"firm of purpose"
Similar sound: These names share phonetic patterns with Haitham — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Arabic origins, giving them the same cultural heritage as Haitham.
Rhythm: Haitham is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.