c. 1300, vitaylle (singular), from Anglo-French and Old French vitaille "food, nourishment, provisions," from Late Latin victualia "provisions," noun use of plural of victualis "of nourishment," from victus "livelihood, food, sustenance, that which sustains life," from past participle stem of vivere "to live" (from PIE root *gwei- "to live"). Spelling altered early 16c. to conform with Latin, but pronunciation remains "vittles."