Clements sits next to 4 phonetic neighbors — Clement, Clemente, and Clemens are the closest matches by sound. Most share Clements's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"son of Clement, gentle one"
"lover of the moor, dweller of the fens"
"From Old French mote meaning a mound, hillock, or moat; a topograph..."
"armor maker, one who makes or wears armor"
"high settlement, village on elevated land"
"head, leader, chief"
"fair; white; bright"
Similar sound: These names share phonetic patterns with Clements — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Clements.
Rhythm: Clements is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.