Tiphaine sits next to 4 phonetic neighbors — Tiffany, Stephane, and Delphine are the closest matches by sound. Most share Tiphaine's French-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"Epiphany"
"of great abundance, how much (from Latin quantus)"
"celestial, of the heavens"
"modern coinage combining De- prefix and Shauna"
"creative variant of Donna"
"blessed, divinely favored"
"Divine spirit or deity"
"creative American compound name"
"Moon goddess; lunar deity"
"torch, bright light"
"device for capturing images"
"from the fertile plain"
"lakeside beauty"
"Creative blend of Keisha (life) and -ana (grace)"
"Pearl of wisdom"
Similar sound: These names share phonetic patterns with Tiphaine — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek via French origins, giving them the same cultural heritage as Tiphaine.
Rhythm: Tiphaine is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.