Definition from Wiktionary, the free dictionary
to-bread (plural to-breads)
- (obsolete) An extra loaf added by bakers to every dozen, completing a baker's dozen.
2013, Robert Means Lawrence, The Magic Of The Horse-Shoe:
- The number thirteen is also sometimes known as a "baker's dozen," because it was formerly a common practice to give thirteen loaves for twelve, the extra piece being called the in-bread or to-bread.