Dallis sits next to 4 phonetic neighbors — Dallas, Alice, and Callis are the closest matches by sound. Most share Dallis's Scottish cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"dwelling by the meadow valley"
"grace, favor"
"fortress, fort"
"reborn, born again"
"cloud, mist"
"goddess Savitri, divine solar figure"
"life, living essence"
"from the town, settlement dweller"
"beautiful, successful"
"knowledge gained by inquiry"
"consistent, reliable presence"
"joyful, playful"
"light and honor (from Nora and Eleanor roots)"
"origin, beginning, birth"
"bird of prey"
"grace, favor"
"ancient, enduring (via Kiana/Cian)"
"possibly inspired by Paisley (a Scottish town)"
"child of light"
"elf ruler, wise counselor"
"the other Aenor (origin of Provençal form)"
Similar sound: These names share phonetic patterns with Dallis — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Scottish Gaelic dal + eas origins, giving them the same cultural heritage as Dallis.
Rhythm: Dallis is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.