Barnabas sits next to 4 phonetic neighbors — Barnaby, Barnabus, and Bartholomew are the closest matches by sound. Most share Barnabas's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"son of encouragement"
"defender at the weir or fortress"
"famous in the land, renowned territory"
"from Devon, poet"
"king of righteousness"
"God is gracious (John) + beloved (David)"
"gift of God (folk etymology)"
"Han dynasty, Chinese people"
"fierce, savage"
"from Evreux, from the Evreux region"
"brave, vigorous power"
"strength"
"tower"
"navigator, guide"
"spiral, coil"
"fifth"
"beautiful, good"
"God's faithful one"
"cassia, sweet-scented bark"
"fair, bright one"
"Eorla's settlement (personal name etymology)"
Similar sound: These names share phonetic patterns with Barnabas — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Aramaic origins, giving them the same cultural heritage as Barnabas.
Rhythm: Barnabas is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.