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"
"from the alder grove"
"elder counsel"
"field settlement"
"dark river, dark stream"
"glory of the homeland"
"sunray, shining light"
"Ford by the windy place; a river crossing in a breezy location"
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.