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"
"from Airelle (Norman village)"
"peaceful ruler"
"phonetic blend (possibly new house, or river)"
"buck's meadow, deer clearing"
"lion, lion of God"
"broad, prosperous, grand"
"dark one"
"eagle friend"
"the Lord is my God"
"remembered by God"
"peace, peaceful"
"to hunt, to chase"
"American creative variant of Trevor"
"guiding spirit"
"dweller near the woods"
"member of the Kru seafaring people (West Africa)"
"anglicization of Welsh Llwyd"
"white field, white acre"
"purple; land of purple dye"
"from Brock's town, badger settlement"
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.