Eryc sits next to 4 phonetic neighbors — Eric, Erik, and Aric are the closest matches by sound. Most share Eryc's Scandinavian cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"ever ruler, eternal king"
"priceless one, of inestimable worth"
"God is gracious"
"defender of the mountain"
"The love"
"to tame, subdue"
"curved throwing stick, boomerang"
"shield wolf, brave protector"
"God is gracious"
"God will raise up"
"Bright forest; from the forested settlement; variant of Sylvester"
"noble Daryl, distinguished one"
"I awake, I am awake"
Similar sound: These names share phonetic patterns with Eryc — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old Norse origins, giving them the same cultural heritage as Eryc.
Rhythm: Eryc is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.