Osiris sits next to 4 phonetic neighbors — Iris, Doris, and Boris are the closest matches by sound. Most share Osiris's Ancient Egyptian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"powerful, mighty"
"from the lake, lake dweller"
"The desired one"
"myrtle tree"
"gazelle (Aramaic equivalent — this is the translation of Tabitha)"
"possibly: lyre, harp (Hebrew kinnor)"
"torch, bright, shining"
"steward, estate manager"
"noble, strong woman"
"poetic name for Jerusalem"
"beautiful voice"
"inquiry, knowledge (from Greek historia)"
"gentle, soft"
"intense happiness, bliss"
"hermitage meadow, woodland clearing"
"origin, beginning, creation"
"work, effort"
"heavenly joy, belonging to the sky"
"little life, vibrant one"
"orchid flower"
Similar sound: These names share phonetic patterns with Osiris — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Ancient Egyptian origins, giving them the same cultural heritage as Osiris.
Rhythm: Osiris is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.