Mirna sits next to 4 phonetic neighbors — Mira, Merna, and Myrna are the closest matches by sound. Most share Mirna's Slavic cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"peaceful, calm"
"fortunate, lucky"
"little noble one"
"mercy, compassion"
"of the sea, beloved"
"soft, gentle, delicate"
"ornamented, adorned"
"love, my love"
"oak tree, terebinth"
"joy, happiness"
"distinguished, famous"
"hospitable, welcoming to strangers"
"high, exalted, sublime"
"feminine form of Justinus"
"divine play, cosmic game"
"pleasantness, beauty"
"God is gracious"
"life, living essence"
Similar sound: These names share phonetic patterns with Mirna — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Slavic mir origins, giving them the same cultural heritage as Mirna.
Rhythm: Mirna is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.