Shadow sits next to 3 phonetic neighbors — Shado, Meadow, and Shalom are the closest matches by sound. Most share Shadow's Old English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"Shade or darkness cast by an object blocking light"
"red-haired king"
"God is salvation"
"well-formed, handsome"
"one who tucks/stretches cloth"
"thorny shrub, wild rose"
"rye clearing"
"Yahweh is exalted"
"God is gracious (via Shaun)"
"handsome, beautiful"
"healer"
"bright, splendid"
"pure"
"joyful"
"raven sword, renowned with the blade"
"from the lake"
"thankful, God has heard"
"archer, warrior of the yew"
"cloud"
"small victorious one"
"fire of God, God is my light"
Similar sound: These names share phonetic patterns with Shadow — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English origins, giving them the same cultural heritage as Shadow.
Rhythm: Shadow is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.