Smithy sits next to 4 phonetic neighbors — Smitty, Smithey, and Smith are the closest matches by sound. Most share Smithy's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"skilled metalworker"
"field settlement"
"glory of the homeland"
"Ford by the windy place; a river crossing in a breezy location"
"from the alder grove"
"elder counsel"
"sunray, shining light"
"black and blue-green"
Similar sound: These names share phonetic patterns with Smithy — 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 Smithy.
Rhythm: Smithy is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.