Olivander sits next to 4 phonetic neighbors — Oliver, Oleander, and Lysander are the closest matches by sound. Most share Olivander's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"man of the olive tree"
"ash tree"
"invented modern name"
"God is gracious"
"olive tree"
"God will strengthen"
"praised, lauded"
"land of the East Saxons"
"valley, dale"
"highland, high ground"
"Yahweh is God"
"broad clearing, wide meadow"
"counsel + guardian"
"praised"
"fortune; luck (in Spanish/Italian)"
"lord, respected elder (if from Sire)"
"man from South Munster (southern Ireland)"
"belief, trust, credibility"
"fortunate king"
Similar sound: These names share phonetic patterns with Olivander — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin/Greek origins, giving them the same cultural heritage as Olivander.
Rhythm: Olivander is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.