Dayren sits next to 3 phonetic neighbors — Darren, Daren, and Dayton are the closest matches by sound. Most share Dayren's Irish Gaelic via Darren-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"great, fruitful"
"priceless one, beyond praise"
"thorny bush, briar plant"
"sky, heaven"
"ruler of the people"
"famous warrior (from Chlodwig/Louis)"
"small fox, fennec fox"
"burnt wine, distilled wine"
Similar sound: These names share phonetic patterns with Dayren — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Irish Gaelic via Darren origins, giving them the same cultural heritage as Dayren.
Rhythm: Dayren is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.