Gediz sits next to 3 phonetic neighbors — Gadiz, Geris, and Gedir are the closest matches by sound. Most share Gediz's Turkish geographical-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"river valley"
"pious, devout"
"elevated in status"
"goodness, benevolence"
"dear one, sweetheart"
"light"
"one who fights for the faith"
"the longed-for one"
"peaceful, complete"
"worthy of praise"
"ardent lord"
"chaste, modest, pure"
"little Hasan, very good"
Similar sound: These names share phonetic patterns with Gediz — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Turkish geographical origins, giving them the same cultural heritage as Gediz.
Rhythm: Gediz is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.