Syxx sits next to 3 phonetic neighbors — Six, Sixx, and Syx are the closest matches by sound. Most share Syxx's English via Latin sex-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"the number six"
"like the sun"
"prosperity, divine blessing"
"expression, speech"
"jasmine flower (from Jasmine root)"
"first name unknown (administrative placeholder)"
"one who grinds grain, miller"
"meadow or clearing"
"force, power, activity, being at work"
"wild rose of the people"
"from the boar meadow"
Similar sound: These names share phonetic patterns with Syxx — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have English via Latin sex origins, giving them the same cultural heritage as Syxx.
Rhythm: Syxx is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.