Wilbert sits next to 4 phonetic neighbors — Gilbert, Wilbur, and Albert are the closest matches by sound. Most share Wilbert's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"resolute, bright"
"lotus flower"
"place of elms"
"from the borough farm"
"may God protect"
"Yahweh has remembered"
"dweller by the rye field"
"noble, superior"
"farm on stony ground"
"one who carries the anointed"
"defender of men"
"black, swarthy"
"God has heard (via Sam = Samuel)"
"joined, attached"
"from the rock (place surname variant)"
"supplanter, heel-catcher"
"high, noble, exalted"
"victory of the people"
"strong, noble, virtuous"
"rays of the sun; life-giving"
Similar sound: These names share phonetic patterns with Wilbert — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Germanic origins, giving them the same cultural heritage as Wilbert.
Rhythm: Wilbert is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.