ouster

The word 'ouster' is a relatively modern legal and political term formed within English by applying the native agent-noun suffix '-er' to the verb 'oust'. The verb 'oust' itself entered English in the early Middle English period from Anglo-Norman French, where 'oster' meant to take away or remove. While its ultimate etymology is debated, a plausible path connects it to the Latin 'obstare', meaning to stand opposite to or hinder, a concept that evolved into the forceful removal of a person from a position. Thus, 'ouster' literally means "a person or thing that removes," which semantically narrowed to specifically denote the act of expulsion from office or property.

Structure: oust (to expel) + er (agent suffix) oust: From Anglo-Norman 'ouster', Old French 'oster' (to take away, remove), of uncertain ultimate origin, possibly from Latin 'obstare' (to stand before, hinder). Functional role: verbal root conveying the core action of removal. er: From Old English '-ere', a Germanic agent-noun suffix. Functional role: derivational suffix that forms nouns denoting a person or thing that performs the action of the verb.