niffer
/ˈnɪfə/Scottish, Irish English (northern ), and English regional (northern )
verb
1 [with object] To trade or exchange (a thing) for (also †with) another thing.
2 [with object] To make a mutual exchange of.
3 [no object] To bargain, haggle; (occasionally) generally to conduct business.
Origin
Mid 16th century; earliest use found in Linlithgow Burgh Court. From niffer.