Changer

Vine's Expository Dictionary of NT Words

1: κολλυβιστής (Strong'S #2855 — Noun Masculine — kollubistes — kol-loo-bis-tace' )

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 .

2: κερματιστής (Strong'S #2773 — Noun Masculine — kermatistes — ker-mat-is-tace' )

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 .

Webster's Dictionary

(1): (n.) One who changes or alters the form of anything.

(2): (n.) One who deals in or changes money.

(3): (n.) One apt to change; an inconstant person.

International Standard Bible Encyclopedia

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 .