Maddisyn sits next to 4 phonetic neighbors — Madison, Madisyn, and Madeline are the closest matches by sound. Most share Maddisyn's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"son of Matthew; gift of God"
"son of the right hand (via Benjamin)"
"power, dominion"
"pre-Greek plant name (Minoan/Mycenaean origin)"
"beauty, loveliness"
"famous, illustrious"
"priests meadow or clearing"
"bright, shining"
"vigilant, watchful"
"goddess, divine"
"descendant of the dark warrior"
"treatment, antidote"
"fair, white, blessed"
"from the Ensley settlement or family"
"gentle wind"
"little thing (endearing diminutive)"
"surname-derived given name"
"sky + diminutive suffix -lin"
"pure, clean"
"God is gracious, Yahweh's grace"
"pure"
Similar sound: These names share phonetic patterns with Maddisyn — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English patronymic origins, giving them the same cultural heritage as Maddisyn.
Rhythm: Maddisyn is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.