Berry-46

(G5929) Synonyms for To Adulterate: kapeleuo (καπηλεύω G2585), doloo (δολόω G1389).

Both these words mean to adulterate, and some maintain that they are practically identical. But it is more probable that doloo means simply to adulterate, while kapeleuo conveys the idea of adulterating for the sake of making an unjust profit by the process.