n.
Pronunciation: ' bär-t ə r
Function: verb
Etymology: Middle English bartren, from Anglo-French *bareter to do business, exchange, alteration of Old French barater ― more at BARRATRY
Date: 15th century
intransitive verb : to trade by exchanging one commodity for another
transitive verb : to trade or exchange by or as if by bartering
– bar · ter · er \ -t ə r- ə r \ noun