contemporary hypothesis states that Medieval Latin via derives from Byzantine [skūláō, skyláō], [skūleúō, skyleúō] - "to strip the enemy (killed in a battle)", "to make booty / extract spoils of war". This version is criticized as well. There is a dispute among historians about whether terms such as "unfree labourer" or "enslaved person", rather than "slave", should be used when describing the victims of slavery. According to those proposing a change in terminology, slave perpetuates the crime of slavery in language by reducing its victims to a nonhuman noun instead of "carry[ing] them forward as people, not the property that they were" (see also People-first language). Other historians prefer slave because the term is familiar and shorter, or because it accurately reflects the inhumanity of slavery, with person implying a degree of autonomy that slavery does not allow. Chattel slavery As a social institution, chattel slavery classes slaves as chattels (personal property) owned by the enslaver; like livestock, they can be bought and sold at will. While it was not present at all times and places in the classical world, chattel slavery did exist in ancient times and was practiced in places such as the Roman Empire. Chattel slavery reached its modern extreme in the Americas during European colonization. Beginning in the 18th century, a series of abolitionist movements saw slavery as a violation of the slaves' rights as people ("all men are created equal"), and sought to abolish it. Abolitionism encountered extreme resistance but was eventually successful; the last Western country to abolish slavery was Brazil, in 1888. The last country to abolish slavery, Mauritania, did so in 1981. Bonded labour Indenture, also known as bonded labour or debt bondage, is a form of unfree labour in which a person works to pay off a debt by pledging himself or herself as collateral. The services required to repay the debt, and their duration, may be undefined. Debt bondage can be passed on from generation to generation, with children required to pay off their progenitors' debt. It is the most widespread form of slavery today. Debt bondage is most prevalent in South Asia. Money marriage refers to a marriage where a girl, usually, is married off to a man to settle debts owed by her parents. The Chukri system is a debt bondage system found in parts of Bengal where a female can be coerced into prostitution in order to