Timmy sits next to 5 phonetic neighbors — Tommy, Jimmy, and Tim are the closest matches by sound. Most share Timmy's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"honoring God"
"born of the yew tree"
"may God protect"
"son of Jack"
"Angel of Death"
"old friend, wise friend"
"to sing, to shout (via Jaron/Yaron)"
"God has helped"
"triumph, conquest"
"white, fair-haired"
"pure, clear"
"son of the sea, great tide"
"true, faithful, loyal"
"near the thicket"
"settlement among the undergrowth, brushwood farm"
"happy, fortunate, blessed"
"God has hidden, protected by God"
"invented warrior name, holy warrior"
"vigilant in battle (via Casey/Cathasaigh)"
"bearer of Christ, Christ-carrier"
Similar sound: These names share phonetic patterns with Timmy — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Timmy.
Rhythm: Timmy is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.