Adal sits next to 5 phonetic neighbors — Adam, Adel, and Adal are the closest matches by sound. Most share Adal's German-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"noble, honorable"
"vigilant, watchful"
"bought land, purchased territory"
"from Sebaste (via Sebastian)"
"from the east, east settlement"
"ancient, enduring"
"son of Braxton"
"gift of God"
"Innocent one"
"of the river Jordan"
"quality, excellence of character"
"ford near a landing stage or wharf"
"divine bear"
"God will add, beloved"
"fruitful, productive"
"slender, narrow (from Irish Caolan)"
"red-haired"
"devoted to Dionysus, of Dionysus"
"supplanter, held by the heel"
"defender of men"
"prosperous landowner"
Similar sound: These names share phonetic patterns with Adal — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old High German origins, giving them the same cultural heritage as Adal.
Rhythm: Adal is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.