Lyndy sits next to 5 phonetic neighbors — Lindy, Lindey, and Wendy are the closest matches by sound. Most share Lyndy's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"pretty, beautiful, tender"
"bringer of light"
"ground, soil"
"devoted to God"
"eternal blossom, blooming flower"
"she who rules the moon"
"gift of God (short for Theodore/Theodora)"
"bright, shining (variant of Helen)"
"angel, messenger of God"
"joy, happiness"
"companion, neighbor"
"noble, exalted"
"from Brittany; land of the Britons"
"industrious ruler"
"hazel-tree meadow, clearing of hazel trees"
"gold, golden"
"red-haired, ruddy complexion"
"nobility, gentle character"
"combination of light and grace"
"lily, rose"
"elm grove, place of elms"
Similar sound: These names share phonetic patterns with Lyndy — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old Germanic origins, giving them the same cultural heritage as Lyndy.
Rhythm: Lyndy is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.