Deng sits next to 4 phonetic neighbors — Ding, Dong, and Dang are the closest matches by sound. Most share Deng's Chinese cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"to mount, to climb, achieve"
"invented creative variant"
"broad clearing, wide meadow"
"courageous hero"
"God grants blessing to the sorrowful"
"son of David, from Hebrew Dodavahu (beloved)"
"chieftain, community leader"
"wealth, fortune, prosperity"
"will, desire + helmet, protection"
"22nd letter of the Greek alphabet"
"fiery one"
"helper, God has helped"
"the heavenly one, royal (via Kalani)"
"famous brilliance"
"modern American invented name"
"father is a lamp/candle"
"excellent, superior"
"related to the Ghassanid Arab tribe"
"the greatest"
"martyr, one who bears witness through sacrifice"
"victorious (if related to Cairo)"
Similar sound: These names share phonetic patterns with Deng — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Chinese origins, giving them the same cultural heritage as Deng.
Rhythm: Deng is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.