Ewen sits next to 4 phonetic neighbors — Ewan, Owen, and Evan are the closest matches by sound. Most share Ewen's Scottish cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"born of yew tree"
"meadow of bent grass"
"son of Eric, son of the ever-ruler"
"indivisible, uncuttable"
"God strengthens, Yahweh strengthens"
"son of Hawkin, son of the little hawk"
"discerning, perceptive"
"settlement near rye fields"
"guardian, protector (by extension)"
"from the oak grove"
"good valley"
"dark, swarthy (from Irish Dubhán)"
"writing feather, quill pen"
"to guard, to protect"
"dark one, little dark-haired one"
"harmonious regularity"
"Welsh form of John"
"short form of Cameron or Camden"
"divine smith"
"brown one, the brown bear"
"protector of mankind"
Similar sound: These names share phonetic patterns with Ewen — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Scottish Gaelic origins, giving them the same cultural heritage as Ewen.
Rhythm: Ewen is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.