Definition
Arrhe (also spelled *arrhae* or *arrhæ*) refers to money or other valuable things given by a buyer to a seller as evidence of a contract or as a pledge that a bargain will be completed. The term originates in civil law and Roman legal tradition, where it served a dual function depending on the stage of the transaction at which it was given.
Two recognized forms existed in classical usage:
1. Arrhae given before a contract is concluded — a preliminary pledge signaling that negotiations are underway and that both parties intend to proceed. Under this usage, the giving of the arrhae itself formed part of the contractual mechanism: the party who gives the arrhae forfeits them if he withdraws; the party who receives them must return double the amount if he is the one who withdraws.
2. Arrhae given after a sale has actually taken place — a confirmatory deposit acknowledging that the contract is already formed. Here the arrhae serve as evidence of the completed agreement rather than as a condition of its formation.
In either form, the practical effect is similar to what modern common law calls earnest money: a sum paid to bind the parties and demonstrate seriousness of intent.
Common Language
No ordinary English usage exists for "arrhe" as a standalone word. The concept, however, maps closely to the common term *earnest* or *earnest money*, which in everyday speech means a deposit or token payment made to show good faith in a transaction. Webster's 1913 defines "earnest" in this sense as "something of value given by the buyer to the seller, by way of token or pledge, to bind the bargain."
The legal gap worth noting: modern common usage of "earnest money" tends to treat forfeiture as automatic and symmetrical only by contractual agreement. The classical arrhae carried a built-in penalty structure — double return by the defaulting seller — that is not inherent in the modern earnest money concept unless explicitly drafted into a contract.
Recognized Forms
/SUBTYPES
1. Arrhae ante contractum — given before the contract is concluded; part of the mechanism of formation.
2. Arrhae post contractum — given after the sale is complete; confirmatory and evidentiary in character.
Why It Matters in Research
Arrhe is a civil law term and will appear almost exclusively in sources drawing on Roman law, continental European law, or early American treatises that synthesize civil and common law traditions. Researchers working in Louisiana, Quebec, or other mixed civil-common law jurisdictions may encounter the concept in contexts where it retains operational significance beyond mere historical interest.
The critical research trap is conflating arrhe with earnest money in common law sources. While the concepts are functionally related, the automatic double-return penalty of the arrhae is not a feature of common law earnest money doctrine. If a historical source uses "arrhae" or "earnest" interchangeably, examine the context carefully — the author may be importing a civil law consequence into a common law analysis without flagging the distinction.
In American legal research, the term effectively disappears from active use after the nineteenth century. Its appearance in a source is often a signal that the author is working in a civilian tradition or drawing heavily on Roman law foundations. Bouvier's inclusion of the term reflects the mid-nineteenth century American effort to synthesize civil and common law vocabulary for practitioners who might encounter both traditions.
Researchers interested in contract formation, consideration doctrine, and the enforceability of preliminary agreements will find arrhe useful as a historical reference point for understanding how early legal systems handled the moment of contractual commitment before modern offer-and-acceptance analysis became dominant.
Historical Dictionary Support
Bouvier's Law Dictionary is the primary English-language legal dictionary source for this term, and its entry captures the core civil law distinction between pre-contractual and post-contractual arrhae. Bouvier correctly identifies the forfeiture-and-double-return mechanism as the operative consequence of the pre-contractual form.
What Bouvier does not fully develop — and what researchers should seek in Roman law sources or continental treatises — is the theoretical debate over whether arrhae given before contract conclusion are themselves constitutive of the contract or merely evidence of an intention to contract. This distinction matters for questions of enforceability: if the arrhae form the contract, withdrawal is a breach; if they are merely preliminary evidence, withdrawal may be treated differently. This nuance is absent from the Bouvier entry and from most common law dictionary treatments.
No other major English-language historical legal dictionaries (Black's early editions, Burrill's) give this term substantial independent treatment, reflecting its status as a civil law borrowing that never fully naturalized into common law vocabulary.
Jurisdictional Note
The term retains the most practical relevance in Louisiana, where civil law tradition persists and concepts drawn from Roman and French law continue to inform contract doctrine. In all other American jurisdictions, arrhe is a historical and comparative term only; the functional equivalent is governed by earnest money and deposit law under common law principles.