Changer
Vine's Expository Dictionary of NT Words [1]
from kollubos (lit., "clipped"), "a small coin or rate of change" (koloboo signifies "to cut off, to clip, shorten," Matthew 24:22 ), denotes "a money-changer," lit., money-clipper, Matthew 21:12; Mark 11:15; John 2:15 .
from kermatizo (not found in the NT), "to cut into small pieces, to make small change" (kerma signifies "a small coin," John 2:15; akin to keiro, "to cut short"). In the court of the Gentiles, in the temple precincts, were the seats of those who sold selected and approved animals for sacrifice, and other things. The magnitude of this traffic had introduced the bankers' or brokers' business, John 2:14 .
International Standard Bible Encyclopedia [2]
chān´jẽr ( κολλυβιστής , kollubistḗs , "money-changer," and so rendered Matthew 21:12; Mark 11:15 ): A banker or other person who changes money at a fixed rate. Indignant at the profane traffic in the temple Jesus "poured out the changers' money" ( John 2:15 ). So used only here. For fuller treatment see Bank; Money-Changers .