Slater sits next to 5 phonetic neighbors — Slate, Sloane, and Dexter are the closest matches by sound. Most share Slater's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"one who works with slate"
"messenger of God"
"from the dale, valley dweller"
"bold, fearless one"
"horseman, from the Cheviot hills"
"sweet-smelling resin"
"cloud"
"god of war"
"supplanter, he who follows at the heel"
"son of the south"
"deep gorge, ravine"
"coastal land, border land"
"famous army, warrior people"
"from the Welsh Seisyll"
"that which is true or real"
"thunder ruler"
"guide, leader"
"bold, riot"
"luminous, shining"
"brave as a wild boar"
Similar sound: These names share phonetic patterns with Slater — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Middle English (sclater/slater) origins, giving them the same cultural heritage as Slater.
Rhythm: Slater is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.