Eowyn sits next to 3 phonetic neighbors — Elowen, Aoife, and Rowan are the closest matches by sound. Most share Eowyn's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"horse joy"
"fairy queen"
"devoted to the god of wine and festivity"
"feminine form of John"
"drained lake"
"little princess"
"life, living"
"noble"
"red clearing"
"hardworking, striving"
"from Scotland, feminine form"
"princess"
"home strength"
"one who is learned, a clerk"
"diminutive endearment"
"fairy palace, fairy mound"
"Irish form of Mary, beloved"
"noble, kind"
"invented Valyrian name, no literal meaning"
"charming, lovable"
"blooming, to flourish"
Similar sound: These names share phonetic patterns with Eowyn — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English origins, giving them the same cultural heritage as Eowyn.
Rhythm: Eowyn is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.