Ethel sits next to 4 phonetic neighbors — Ethyl, Edith, and Elspeth are the closest matches by sound. Most share Ethel's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"noble"
"offering, awakening"
"valley"
"pre-Greek plant name (Minoan/Mycenaean origin)"
"hare meadow"
"future"
"descendant of the helpful"
"Lisping; from the Roman family name Blaesus"
"son of Maud; strong in battle"
"God beholds"
"from Javea (place name)"
"cross-shaped"
"ewe (short for Rachel)"
"son of the steward"
"diminutive of Elizabeth"
"God is gracious, Yahweh's grace"
"graceful as a bird"
"deer"
"small songbird"
"the way-land, road land"
Similar sound: These names share phonetic patterns with Ethel — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English 'æthel' origins, giving them the same cultural heritage as Ethel.
Rhythm: Ethel is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.