selector

The word 'selector' is a relatively modern English formation, built upon the established verb 'select'. The root 'select' itself entered English in the mid-16th century from the Latin past participle 'selectus' of 'seligere', meaning 'to choose out, pick out'. This Latin verb is a compound of 'se-' ('apart') and 'legere' ('to gather, choose'), a root with deep Proto-Indo-European ancestry related to collecting. The agentive suffix '-or', also of Latin origin, was appended to create a noun denoting an entity that performs the action of selecting. The logic is transparent: a selector is literally 'that which chooses'. While 'selector' initially referred to a person, its application has expanded in the technological age to include mechanical devices and software components that perform the same function of making a choice from a set of options.

Structure: select (choose) + or (agent/person/thing) - select: From Latin 'selectus', meaning 'chosen'. In this word, it is the core root conveying the meaning of choosing. - or: A suffix of Latin origin, used to form agent nouns indicating a person or thing that performs the action of the verb (e.g., actor, creator, selector).