Ena sits next to 5 phonetic neighbors — Ina, Ena, and Leena are the closest matches by sound. Most share Ena's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"fire, grain of fire (Gaelic Eithne)"
"torch, bright light"
"brave heart (via phonetic resonance)"
"bright, clear, luminous"
"joyful, exuberant"
"dark one, little dark one"
"noble and soft/gentle"
"work, industrious"
"garden of holly"
"hay clearing, meadow clearing"
"pledged to God"
"God exists, gift of God"
"vigilant, watchful"
"little fire"
"pure"
"God will add, God is gracious"
"lily flower"
"son of Roy, descendant of the king"
"crimson beauty (alternate kanji)"
"slender, narrow"
Similar sound: These names share phonetic patterns with Ena — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Irish Gaelic origins, giving them the same cultural heritage as Ena.
Rhythm: Ena is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.