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"
"white phantom, fair spirit"
"little poet"
"royal residence, castle town"
"very pure, very holy"
"deep valley dwellers"
"warrior spirit"
"very fair, noble maiden"
"son of Harry"
"God is gracious"
"jasmine flower"
"small, mighty songbird"
"fair, holy, and blessed"
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.