Demetrius sits next to 4 phonetic neighbors — Dmitri, Demetria, and Demetris are the closest matches by sound. Most share Demetrius's Greek-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"earth-lover"
"west wind"
"follower of Demeter, devoted to earth mother"
"protector of men"
"hater of injustice"
"sir, mister, respected one"
"God is gracious"
"divine, godly"
"heart"
"spiritually favored, beatified"
"gift, wealthy possessor"
"fruitful, doubly fruitful"
"kingly, like a king"
"skill acquired through experience"
"beauty, handsomeness"
"moistening, life-giving water"
"God is gracious (via James/Jacob etymology)"
"warrior"
Similar sound: These names share phonetic patterns with Demetrius — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Demetrius.
Rhythm: Demetrius is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.