# zwieback

> English word · Noun

## Definitions
1. A form of rusk, usually sweetened bread enriched with eggs that is baked and then sliced and toasted until dry and crisp; considered easy to digest and therefore given to the ill and used as a teething food for toddlers.

## Etymology
From German Zwieback, from zwie- (“twi-, two-”) + backen (“to bake”) (i.e. “twice-baked”), a calque of Italian biscotto (but not to be confused with it).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/word/zwieback