Ivor sits next to 4 phonetic neighbors — Ivory, Ivore, and Avery are the closest matches by sound. Most share Ivor's Welsh cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"yew warrior"
"affectionate term for a daughter"
"my God is an oath"
"Sweet and lovely as a peach; endearing and warm-spirited"
"dark-skinned, Moorish"
"army, military equipment"
"from the Scottish place called Melvin"
"bright, shining one (via Eleanor/Lenora)"
"short form of Erasmo/Anselmo"
Similar sound: These names share phonetic patterns with Ivor — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old Norse origins, giving them the same cultural heritage as Ivor.
Rhythm: Ivor is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.