Arlet sits next to 4 phonetic neighbors — Arlette, Arlett, and Scarlett are the closest matches by sound. Most share Arlet's French-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"eagle power, noble strength"
"of the sun"
"water lady, she who comes from the water"
"Bethlehem, birthplace of Jesus"
"my delight, my pleasantness"
"free woman"
"advisor, counselor"
"ruler of the elves"
"wise protector"
"bitter"
"ruler, one who reigns"
"gentle, branch, to draw water"
"pure, beloved"
"renowned in battle"
"meadow, open ground"
"sweet, pleasant"
"to be of worth, to be strong"
"beautiful"
"of ancient lineage (from Prisca)"
"dark, rich (possibly referring to the dark Adriatic waters)"
Similar sound: These names share phonetic patterns with Arlet — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Germanic arn + lette (diminutive) origins, giving them the same cultural heritage as Arlet.
Rhythm: Arlet is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.