Floyd sits next to 4 phonetic neighbors — Lloyd, Boyd, and Roy are the closest matches by sound. Most share Floyd's Welsh cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"anglicization of Welsh Llwyd"
"high will, desiring much"
"victory"
"to flow, the descending river"
"son of Ole (ancestor)"
"sharp hill, ridge"
"modern invented spelling"
"from Rome (Rum/Anatolia)"
"son of the home ruler"
"God is gracious"
"green/fresh river"
"famous spear (from Hrodgar)"
"narrow (from Kyle's Gaelic root caol)"
"prince, leader (from -mir)"
"nobleman, marquess, border guardian"
"cold, enduring"
"sky father, father of gods"
"adapted from Kiristino (Ojibwe name for Cree people)"
"variant of Garrett/Gerald"
"sea, ocean"
Similar sound: These names share phonetic patterns with Floyd — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Welsh origins, giving them the same cultural heritage as Floyd.
Rhythm: Floyd is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.