By analogy, a method of lending where the interest is deducted beforehand, archetypally borrowing twelve dollars (owing twelve dollars back, a dozen) but actually receiving only eleven
banker's dozen
Hyphenation
banker's doz·en
Turkish pronunciation
bängkırz dʌzın
Pronunciation
/ˈbaɴɢkərz ˈdəzən/ /ˈbæŋkɜrz ˈdʌzən/
Etymology
() A play on the phrase baker's dozen; it is one less than a dozen as compared to one more.