Mikey sits next to 4 phonetic neighbors — Mickey, Mikie, and Mike are the closest matches by sound. Most share Mikey's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"gift from God (popular interpretation)"
"connected to healing arts"
"eternal, immortal"
"to hide"
"youth, vital force"
"modern invented name"
"hollow, seething pool"
"lion"
"crooked, winding"
"delight, paradise (as in Eden)"
"faithfulness, devotion, steadfast allegiance"
"bear-like strength (if related to arth)"
"beautiful fragrance"
"one who lisps or stammers"
"wagon driver, cart maker (from Old English Wayne)"
"lordly, master (via Cyril)"
"son of the heart/mind"
"thankful, God has heard"
"settlement near a tree stump"
"one who strikes, striker"
"given by God, God's gift"
Similar sound: These names share phonetic patterns with Mikey — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Mikey.
Rhythm: Mikey is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.