Deker sits next to 4 phonetic neighbors — Decker, Declan, and Dekker are the closest matches by sound. Most share Deker's Dutch-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"thatcher, roofer"
"one of the Vandal people"
"all, completely"
"a plaything, a source of joy"
"meadow of the holly tree"
"flowering, flourishing"
"the golden one"
"warrior, army man"
"from Laurentum; crowned with laurel"
"sun, radiant light"
"root, foundation"
"steward, estate manager"
"western land, western meadow"
"Inspired by Santos/Saint (Latin sanctus, holy) with a creative mode..."
"oarsman; one who rows"
"blessed, happy"
Similar sound: These names share phonetic patterns with Deker — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Dutch/German origins, giving them the same cultural heritage as Deker.
Rhythm: Deker is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.