WordofTheDay.US

controller

/kənˈtɹəʊlə/ noun

In Latin: moderātor, moderātrix Wiktionary

noun Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about controller at Wordnik → Where our words come from →

  1. One who controls something.
  2. Any electric or mechanical device for controlling a circuit or system.
  3. The chief accounting officer which audits, and manages the financial affairs of a company or government; a comptroller.

Origin

From Middle English countreroller, from Anglo-Norman contreroulour and Middle French contreroleur (French contrôleur), from Medieval Latin contrārotulātor, from *contrārotulāre (from which control). Doublet of comptroller. By surface analysis, control + -er.

From Wiktionary, via Kaikki.org (CC BY-SA)