Dena sits next to 4 phonetic neighbors — Deena, Dinah, and Dana are the closest matches by sound. Most share Dena's Hebrew-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"judged, vindicated"
"gentle, delicate"
"industrious, striving"
"blessed (via Benedetta/Bennett)"
"flowing water, movement"
"fertile, productive"
"intelligent, smart"
"famous, illustrious"
"sequence of musical notes forming a tune"
"work, labor"
"helpful one"
"strength, exalted one (Irish/Gaelic form Bree)"
"wished-for child (Evelyn connection)"
"the sable marten"
"she who travels at night"
"healthy, plentiful"
"bright, shining light"
"sea, ocean"
"great + spring/stream"
"from céilí, traditional Irish dance gathering"
"land where rye is grown"
Similar sound: These names share phonetic patterns with Dena — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew 'Dinah' origins, giving them the same cultural heritage as Dena.
Rhythm: Dena is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.