Emrys sits next to 5 phonetic neighbors — Ember, Enid, and Iris are the closest matches by sound. Most share Emrys's Welsh cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"immortal, divine"
"most holy"
"from Wales, land of the Cymry"
"riverbank with a windlass"
"pear tree dweller"
"beloved"
"from Devon, the deep places"
"blessed, fair one"
"fair, holy, and blessed"
"small, mighty songbird"
"warrior spirit"
"God is gracious"
"fair and smooth"
Similar sound: These names share phonetic patterns with Emrys — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Welsh/Latin/Greek origins, giving them the same cultural heritage as Emrys.
Rhythm: Emrys is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.