Mordecai sits next to 3 phonetic neighbors — Mordechai, Mordekhai, and Mortimer are the closest matches by sound. Most share Mordecai's Hebrew-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"servant of Marduk"
"he enlightens, God enlightens"
"eagle friend"
"fisherman"
"son of Kenneth / son of Coinneach"
"darling, beloved"
"son of Thomas, son of the twin"
"peace"
"crowned one, garland-wearer"
"from the high woodland clearing"
"castle, new home"
"American creative variant of Trevor"
"pointed hill, peaked summit"
"seeking of a noble goal"
"beloved, dear (Yiddish Lieb)"
"God heals, God supports"
"of the eighth"
"forefather"
"God is just, justice of God"
"from the kaupa (trading) land"
"he judged, he governed"
Similar sound: These names share phonetic patterns with Mordecai — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Babylonian origins, giving them the same cultural heritage as Mordecai.
Rhythm: Mordecai is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.