The word 'oeuf' (French for egg) gave us the culinary term 'eggs en cocotte,' but the tennis term 'love' (meaning zero) also likely derives from 'l'oeuf' — because zero looks like an egg.
The French word for egg, oeuf, has left marks in two places that are routinely mentioned in the same breath: the culinary term for eggs cooked in a small ceramic dish, and the tennis term for zero. The culinary connection is straightforward and fully documented. The tennis etymology is more contested, more interesting, and still the dominant explanation in most reference sources, though not every linguist accepts it without reservation. Both derive from the same observation: a zero looks like an egg.
## Oeufs en Cocotte: The Culinary Term
Oeufs en cocotte is a French preparation in which eggs are broken into individual small ramekins or ceramic dishes, often with cream, butter, herbs, or other additions, and then baked in a bain-marie until the whites are just set and the yolks remain soft. The word cocotte refers to the small fireproof dish used, not exclusively to eggs. Chicken cooked in a covered pot, cocotte de poulet, uses the same word for the vessel.
The term is well established in French culinary writing from at least the 19th century and appears in Escoffier's codified French cuisine without any particular note of novelty, suggesting it was already standard usage by the time formal culinary documentation became systematic. The egg-cocotte connection requires no etymological gymnastics. Oeuf is the egg; cocotte is the cooking vessel; the dish is named descriptively.
Across French culinary terminology, eggs appear under several preparations: en cocotte, brouilles for scrambled, poches for poached, mollets for soft-boiled. The French kitchen's taxonomy of egg preparations is more granular than most other culinary traditions, which reflects both the centrality of eggs in classical French cooking and the French tendency to name things precisely.
## Love in Tennis: The Egg Zero Theory
The theory that tennis's term love for zero derives from the French l'oeuf, the egg, via the egg's resemblance to a zero, is the most commonly cited etymology and appears in the Oxford English Dictionary and most standard references. The argument runs as follows: French players or observers referred to a score of zero as l'oeuf, the egg, because the numeral resembles the shape of an egg. English players, adopting the term phonetically, heard l'oeuf as something close to love, and the word stuck.
The timeline is plausible. Tennis developed in France in the 12th century as jeu de paume, hand tennis, and the scoring system with its 15-30-40 structure and its zero is of French origin. The game spread to England in the 16th century, and English tennis terminology absorbed several French-derived terms. Love appears in English tennis records from the late 18th century onward.
The principal problem with the etymology is that documentary evidence of French players actually using l'oeuf as a score term is thin. The egg-zero visual analogy is recorded in French, and the visual similarity is real, but the specific use of l'oeuf as a scorecard term during the period when English players would have borrowed it has not been well documented. The OED notes the theory while flagging the evidential uncertainty.
## Alternative Theories and the State of the Evidence
The main competing etymology derives love from the phrase play for love, meaning to play for nothing, for the pleasure of the game rather than money. This was a documented English phrase in the relevant period and would explain zero as playing for no stakes, rather than as a visual egg pun borrowed from French.
A third, less frequently cited theory connects the term to the Dutch word lof, meaning honor or praise, but this has even less documentary support than the egg theory.
The honest answer is that the egg etymology is plausible, widely accepted, but not proven to the standard that would satisfy a strict historical linguist. It has the character of an etymology that is true enough to keep, because the alternative explanations are similarly underdetermined and the egg story is more satisfying. Languages often retain the more memorable explanation. The zero does look like an egg. The French word for egg does sound, to an English ear, something like love. These coincidences are not nothing, even if they are not quite proof.
What is clear is that oeuf has been a productive word, generating both a culinary tradition of eggs baked in small dishes and a sporting etymology that has been cited in tennis commentary for at least a century. Not many food words travel that far.