Lex sits next to 4 phonetic neighbors — Alex, Rex, and Hex are the closest matches by sound. Most share Lex's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"defender of men (short for Alexander)"
"battle, fighter"
"maker of cords and ropes"
"little fire"
"son of Jack"
"king, royal"
"generous, tolerant"
"modern invented name from Kyle + -er suffix"
"standalone phonetic name derived from letter sounds"
"inspired counsel"
"settlement on a Roman road, farm on the paved way"
"doorkeeper, one who ushers"
"search, journey, adventure"
"of the Dorians"
"descendant of the hound of valor"
"raider, warrior"
"from the hills"
"lapis lazuli, beauty"
Similar sound: These names share phonetic patterns with Lex — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Lex.
Rhythm: Lex is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.