Ferris sits next to 3 phonetic neighbors — Farris, Harris, and Paris are the closest matches by sound. Most share Ferris's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"man of vigor, strong man"
"brilliant, shining"
"glowing, scorching"
"with melody, melodious"
"the winter season, wet season"
"gift of God (via Welsh David)"
"island meadow"
"free ruler, powerful peace"
"salt"
"of Marion, son of Marion"
"Aromatic herb, salvia"
"descendant of the shouter (herald)"
"old river, ancient waters"
"Haelstein's settlement"
"of the (invented compound)"
"the immortal self"
"prophet, one who prophesies"
"three, third-born"
"new year, fresh beginning"
"precious green stone"
"God is gracious (from Shawn/Sean)"
Similar sound: These names share phonetic patterns with Ferris — 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 Ferris.
Rhythm: Ferris is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.