noun / verb
bargain
BAR-guhn/ˈbɑːrɡən/
An agreement about the terms of an exchange.
The customer and seller complete their bargain over the reduced-price lamp.

Etymology
Old French bargaine meant a transaction or deal. The meaning shifted from the agreement to what was acquired through it, then specifically to something bought at a favorable price.
In context
for 150 the week after i bought this it was on special for 120 and then even recently these were down to 99 each from bcf which is an absolute bargain
More examples
- She bargained with the seller until they agreed on a price.
- The winter coat was a bargain at twenty dollars.
- Both sides kept their part of the bargain.
Forms
bargain · bargains · bargained · bargaining