Politics
The word comes from the same Greek word from which the title of Aristotle's book "Politics" (Πολιτικά, "Polis") also derives; "polis" means "affairs of the cities". The book title was rendered in Early Modern English in the mid-15th century as "Polettiques"; it became "politics" in Modern English. The singular "politic" first attested in English 1430 and comes from Middle French "politique", in turn from Latin "politicus", which is the Latinization of the Greek πολιτικός ("politikos"), meaning amongst others "of, for, or relating to citizens", "civil", "civic", "belonging to the state", in turn from πολίτης ("polites"), "citizen" and that from πόλις ("polis"), "city".
Party line (politics)
In politics, the line or the party line is an idiom for a political party or social movement's canon agenda, as well as ideological elements specific to the organization's partisanship. The common phrase toeing the party line describes a person who speaks in a manner that conforms to his political party's agenda. Likewise, a party-line vote is one in which most or all of the legislators from each political party voted in accordance with that party's policies. In several countries, a whip attempts to ensure this.