Bacon
The word *bacon* entered English via Old French *bacon*, meaning 'salted pork' or 'back meat', itself borrowed from a Frankish source. The Frankish form *\*bakō* (back, ham, flitch of salted pork) descends from Proto-Germanic *\*bakō*, related to *\*bak-* (back), which connects to the anatomical term for the dorsal part of the body. The word's etymology is ultimately rooted in the physical cut: bacon was, at its origin, the cured flesh of the pig's back.
Old French and Frankish Roots
The earliest attested Middle English form is *bacoun*, appearing in texts from around 1330. This was drawn directly from Old French *bacon*, which the Franks had contributed to the evolving Romance vocabulary of northern France. The Frankish term *\*bakō* is reconstructed by comparison with Old High German *bahho* (bacon, buttock, back), Middle Low German *baken*, and Old Dutch *baken* — all pointing to a shared Germanic root.
Proto-Germanic *\*bakô* (sometimes reconstructed as *\*baka-*) belongs to a cluster of body-part terms in Germanic. The core sense was the broad flat surface of the back, later transferred metonymically to the cut of salted or smoked meat taken from that region of the pig.
Latin and the Continental Record
Medieval Latin documents show *baco* (accusative *baconem*) from around the 8th century, particularly in legal and trade texts from Carolingian Europe. This Latin form is a Germanic loanword, not a classical Latin inheritance — classical Latin used *lardum* or *perna* for similar products. The Norman Conquest of 1066 brought the Old French form into English alongside a flood of culinary vocabulary that displaced or supplemented existing Old English terms.
Old English and Germanic Cognates
Old English had *flicce* (a flitch or side of bacon) rather than a cognate of *bacon* itself, suggesting the French-derived term arrived fully formed through post-Conquest contact. Old English *bæc* (back) is, however, the native English cognate of the same root, making *back* and *bacon* doubly related — once by origin, once by meaning.
Root Analysis
The proposed Proto-Indo-European root is *\*bʰeg-* or *\*bʰog-*, variously reconstructed, associated with bending or the curved surface of the back. This connects, tentatively, to Latin *fūstis* (staff, club) and some reconstructed body-part vocabulary, though the PIE connection for this particular Germanic cluster remains debated among scholars. The chain from Proto-Germanic *\*bakô* through Frankish into Old French and then Middle English is far more secure.
Within Germanic, the cognate family is clear: - Old High German *bahho* — bacon, back - Middle Dutch *baken* — ham, salted pork - Old Saxon *bako* — back, shoulder - Old Norse *bak* — back (anatomical, but not recorded in the culinary sense)
Cultural Context and Semantic Shifts
In medieval England, bacon was not the thin-sliced breakfast rasher of the modern kitchen but a substantial, preserved commodity — typically a salted or smoked side of pork. It was peasant food, stored over winter, a dietary staple rather than a luxury. The phrase *to save one's bacon*, meaning to preserve oneself from harm, appears in print from the 17th century, drawing on this sense of bacon as something valuable that must be protected from spoilage or theft.
The idiom *bring home the bacon* — to provide for one's family — is recorded from the early 20th century, though a popular folk etymology links it to the Dunmow Flitch, a medieval English custom in which a flitch of bacon was awarded to any married couple who could swear before a jury that they had not argued for a year and a day. The custom is real, documented from the 12th century at Little Dunmow in Essex, though the connection to the idiom is disputed.
Francis Bacon, the 16th-century philosopher, shares the surname through a different route — it was an occupational or topographic family name, not a direct lexical survival. The philosopher had no especial association with the food.
Cognates and Relatives
Modern English descendants and near-relations of the same root include: - *back* (Old English *bæc*) — the anatomical term - *aback* (Old English *on bæc*) — behind, taken aback - German *Schinken* (ham) — a parallel Germanic term for cured pork but from a different root - French *bacon* — now also used in French, partly as an anglicism in culinary contexts
Modern Usage
Today *bacon* in English almost always refers to cured, often smoked, sliced pork belly or back — the back-cut sense has been complicated by regional variation. British *back bacon* preserves the anatomical origin most directly; American-style bacon is typically cured pork belly. The word's journey from a Frankish body-part term to a global culinary shorthand for cured pork illustrates how food vocabulary migrates, specialises, and loses its anatomical transparency over time.