Bite, sandwich, Latin term derived from buccella diminutive of bucca, mouth. Doughnut or very hard biscuit, made of wheat flour, salt, olives with aromatic herbs and water, baked several times to dehydrate it completely, which was eaten by the Roman legionaries in the campaign and then also by the sailors. This stale bread that the Roman soldiers carried in their backpack (sarcina) could last more than a year in perfect condition.