Wilma sits next to 5 phonetic neighbors — Willa, Velma, and Hilma are the closest matches by sound. Most share Wilma's German-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"resolute protector"
"circular hollow, cauldron (landscape feature)"
"slender, graceful"
"one who hears, God has heard"
"refuge, shelter (from Hebrew azilah)"
"feminine form of Charles (free man)"
"hay meadow, hay clearing"
"the other Aenor"
"variant of Twyla, meaning woven"
"woman from Magdala"
"pledged to God"
"small stream, brook"
"exalted, enlightened"
"place by the bridge"
"work, industrious"
"delicate, lace-like"
"city of mosaics"
"dear little one"
"rich, powerful"
"dear one, beloved"
Similar sound: These names share phonetic patterns with Wilma — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Germanic origins, giving them the same cultural heritage as Wilma.
Rhythm: Wilma is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.