The English word whore derives from the Old English word hōra, from the Proto-Germanic *hōrōn (prostitute), which derives from the Proto-Indo-European root *keh₂- meaning "desire", a root which has also given us Latin cārus (dear), whence the French cher (dear, expensive) and the Latin cāritās (love, charity).
Use of the word whore is widely considered pejorative, especially in its modern slang form of ho.
It is sometimes referred to euphemistically as "the world's oldest profession" in the English-speaking world. Brothels are establishments specifically dedicated to prostitution.
In escort prostitution, the act may take place at the client's residence or hotel room (referred to as out-call), or at the escort's residence or a hotel room rented for the occasion by the escort (in-call). Although the majority of prostitutes are female and have male clients, a prostitute can be, and have clients, of any gender or sexual orientation.
There are about 42 million prostitutes in the world, living all over the world (though most of Central Asia, the Middle East and Africa lacks data, studied countries in that large region rank as top sex tourism destinations).
Another explanation is that prostituta is a composition of pro and statuere (to cause to stand, to station, place erect).
In some places, men who drive around red-light districts for the purpose of soliciting prostitutes are also known as kerb crawlers. The prostitution metaphor, "traditionally used to signify political inconstancy, unreliability, fickleness, a lack of firm values and integrity, and venality, has long been a staple of Russian political rhetoric." In 1938, he used the same description for the Comintern, saying that the chief aim of the Bonapartist clique of Stalin during the preceding several years "has consisted in proving to the imperialist 'democracies' its wise conservatism and love for order.