Katerina sits next to 4 phonetic neighbors — Katarina, Kateryna, and Catherine are the closest matches by sound. Most share Katerina's Greek-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"pure"
"cheerful, joyful"
"shining, bright"
"hope"
"most beautiful"
"utterly pure, very holy"
"to shine upon men"
"wholesome, thriving"
"standing up again, rebirth"
"beautiful, rosebud"
"peaceful one"
"bearer of good news"
"viburnum tree, guelder-rose"
"noble kind"
"lily (flower)"
"gentle, tamed"
"foreigner, guest"
Similar sound: These names share phonetic patterns with Katerina — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Katerina.
Rhythm: Katerina is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.