Iris sits next to 3 phonetic neighbors — Ida, Lyris, and Isis are the closest matches by sound. Most share Iris's Greek-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"rainbow"
"noble oath"
"stone of the side, healing stone"
"hazel tree"
"Cattleya orchid flower"
"night"
"blooming, green shoot"
"from Breukelen"
"honor, reputation"
"listener"
"magnolia flower"
"God will add, God shall increase"
"to be strong, to be healthy"
"new growth, spring"
"race of women"
"From the Hebrew 'Delilah'; the biblical Delilah was the lover of Sa..."
"sublime, high, exalted"
"day's eye"
"king of elves"
"warrior, raider"
"born of fire, bright one's son"
Similar sound: These names share phonetic patterns with Iris — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Ancient Greek origins, giving them the same cultural heritage as Iris.
Rhythm: Iris is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.