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"
"from Cardigan (Welsh place name)"
"remover of obstacles, without impediments"
"hawk, bird of prey"
"heavenly (from Hawaiian -ani suffix)"
"to invite, to lure, to beckon"
"beloved of God"
"lark (a songbird)"
"born of the people, full of life"
"chosen, select, the best"
"ascent, going up"
"unclear Celtic origin, possibly related to sena (ancient, old)"
"Trade or market place"
"divine image, manifestation"
"modern coinage; creative invention"
"of the sea"
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.