Marquian sits next to 4 phonetic neighbors — Marcus, Marquis, and Marian are the closest matches by sound. Most share Marquian's Old French marche via Marquis-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"of the march, nobleman"
"battle, strife"
"God is salvation"
"God is gracious"
Similar sound: These names share phonetic patterns with Marquian — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old French marche via Marquis origins, giving them the same cultural heritage as Marquian.
Rhythm: Marquian is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.