Boil — From Old French to English | etymologist.ai
boil
/bɔɪl/·verb·c. 1200–1250 CE in Middle English, in the form 'boilen'; attested in Anglo-Norman culinary and medical texts brought into England after the Norman Conquest of 1066, displacing the native Old English 'sēoþan' (to seethe) in many registers.·Established
Origin
The cooking verb boil travelled from Latin bullīre through Norman French into English after 1066, displacing the native Old English sēoþan — a linguistic record of the Conquest's restructuring of the kitchen's social hierarchy.
Definition
To heat a liquid to the temperature at which it turns to vapour, producing characteristic bubbling agitation throughout the mass.
The Full Story
Old Frenchc. 900–1100 CEwell-attested
The English verb 'boil' entered the language via Anglo-Norman and Old French 'boillir' (also spelled 'bolir', 'buillir'), meaning 'to boil, bubble, seethe'. This was a borrowing — not an inheritance — into English from French following the Norman Conquest of 1066, which flooded English with Romance vocabulary in cooking, domestic, and courtly registers. Old French 'boillir' descended from Vulgar Latin *bullire, itself a regularised form of Classical Latin 'bullire' (to bubble, boil, seethe), which derived from 'bulla' (a bubble, a
Did you know?
English boil andFrench bouillon are doublets — two forms of the same Latin root bullīre that entered English through different channels centuries apart. Boil arrived with the Norman Conquest in the Anglo-Norman dialect form boilir, while bouillon came later from Parisian French, carrying a rounded vowel the Normans had not used. Thesamepot
source, possibly Etruscan or another Italic substrate. What is certain is the Latin-to-French route: 'bullire' → Vulgar Latin *bullire → Old French 'boillir' → Anglo-Norman 'boiler/boillir' → Middle English 'boilen'. The word arrived in England as part of the Norman culinary and domestic register — French speakers in the English court and kitchen brought with them a vocabulary for food preparation, and 'boil' displaced or supplemented the older Old English verb 'sēothan' (to seethe/boil), which itself was a true Germanic cognate of PIE *seu- (to boil, seethe). The cultural transmission vector was conquest: Norman lords, cooks, and scribes carried French into English domestic life wholesale after 1066. Key roots: *beu- (Proto-Indo-European (debated): "to swell, to puff out, to inflate — the proposed ultimate root, though the PIE ancestry of Latin bulla is not universally accepted"), bulla (Latin: "a bubble; a rounded swelling; a boss — the proximate source of bullire, possibly a Mediterranean substratum word"), bullire (Classical Latin: "to bubble, to boil, to effervesce — the direct ancestor of Old French boillir").
bouillir(French (inherited from Latin bullire))bullire(Latin (source form — from bulla, bubble))bollire(Italian (inherited from Latin bullire))hervir(Spanish (inherited from Latin fervere, parallel Latin source))kochen(German (from Proto-Germanic, borrowed from Latin coquere))fervere(Latin (parallel source — to boil, seethe; root of English fervent))