The Greek that is translated into English as “Jesus, whose other name is Justus” is translated into Banaro as “a ground (earthly) man whose name is Jesus, whose other name is Justus.”
William Butler (see here) tells this story:
“The translation introduced the next person as ‘a ground (earthly) man whose name is Jesus, whose other name is Justus.’ ‘Ground man’ is a term that we have used previously to refer to people of the earth, usually with the connotation of ‘sinful people.’ I could not figure out why Samuel had characterized a companion of Paul in this way so I asked the checkers, ‘Why is the word ‘ground’ in there?’ I got a look that said, ‘Are you really that stupid?’ then the explanation, ‘The man’s name is Jesus. If we don’t tell people that he is a ‘ground man,’ people will be confused and think that Paul is talking about Jesus, God’s son.’ Okay, I never thought about it that way but it does make sense.'”