Signy sits next to 5 phonetic neighbors — Sigrid, Siggy, and Ginny are the closest matches by sound. Most share Signy's Old Norse-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"victory, fresh start"
"to invite, to lure, to beckon"
"heavenly (from Hawaiian -ani suffix)"
"unclear Celtic origin, possibly related to sena (ancient, old)"
"those chosen or selected"
"beautiful dance"
"noble, pure, of distinguished origin"
"ascent, going up"
"flower; to shine"
"modern nickname-name (from Bacardi)"
"beauty, beautiful form"
"possibly inspired by light (Akari parallel)"
"beloved"
"singing bird of dawn"
"hawk, bird of prey"
"beloved, little one born"
"Honor becomes wealth; honor is riches"
Similar sound: These names share phonetic patterns with Signy — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old Norse origins, giving them the same cultural heritage as Signy.
Rhythm: Signy is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.