A lien ( or ) is a form of security interest granted over an item of property to secure the payment of a debt or performance of some other obligation. The owner of the property, who grants the lien, is referred to as the lienee and the person who has the benefit of the lien is referred to as the lienor or lien holder. The etymological root is Anglo-French lien, loyen "bond", "restraint", from Latin ligamen, from ligare "to bind". In the United States, the term lien generally refers to a wide range of encumbrances and would include other forms of mortgage or charge. In the US, a lien characteristically refers to nonpossessory security interests (see generally: ). In other common-law countries, the term lien refers to a very specific type of security interest, being a passive right to retain (but not sell) property until the debt or other obligation is discharged. In contrast to the usage of the term in the US, in other countries it refers to a purely possessory form of security interest; indeed, when possession of the property is lost, the lien is released. Equitable lien In common-law countries, equitable liens give rise to unique and difficult issues. An equitable lien is a nonpossessory security right conferred by operation of law, which is similar in effect to an equitable charge. It differs from a charge in that it is non-consensual. It is conferred only in very limited circumstances, the most common (and least ambiguous) of which is in relation to the sale of land; an unpaid vendor has an equitable lien over the land for the purchase price, notwithstanding that the purchaser has gone into occupation of the property. It is seen as a counterweight to the equitable rule which confers a beneficial interest in the land on the purchaser once contracts are exchanged for purchase. It is a matter of conjecture how far equitable liens extend outside of the unpaid vendor's lien. Equitable liens have been held to exist in a number of cases involving choses in action, but not yet in relation to chattels. The Australian courts have been the most receptive towards equitable liens in relation to personal property (see Hewett v Court (1983) 57 ALJR 211), but a review of the cases still leaves a lack of clarity in relation to the principles upon which an equitable lien will be imposed. In