Enid sits next to 3 phonetic neighbors — Ennis, Ethel, and Edith are the closest matches by sound. Most share Enid's Welsh cluster, so the rhythm and vowel shape carry across the list.
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"purity, virtue (literary association)"
"victorious woman"
"dove"
"whole, universal power"
"creative variant of Katalina"
"precious green stone"
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"ethereal fairy"
"untamed, free spirit"
"cross-shaped"
"soft, gentle"
"defender of mankind"
"chief; prince; leader"
"fellow countrymen, compatriots"
"protector of mankind"
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Similar sound: These names share phonetic patterns with Enid — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Welsh origins, giving them the same cultural heritage as Enid.
Rhythm: Enid is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.