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See also: reĝo and regó



From registration +‎ -o (diminutive suffix).


rego (usually uncountable, plural regos)

  1. (uncountable, colloquial, Australia, New Zealand) Registration for a motor vehicle.
    The police pulled me over for driving with an expired rego.
    • 2003, Australian Senate, Parliamentary Debates (Hansard), page 18057,
      You might give these people a badge or some livery for their boat and you can give them a discount on the rego of their boat.
    • 2007, Archie Gerzee, WOW! Tales of a Larrikin Adventurer, page 223,
      They gave us permission to drive in Australia under the British rego, meaning we still had our GB number plates.
    • 2008, Ryan Ver Berkmoes, Peter Dragicevich, Justin Flynn, Paul Harding, East Coast Australia, page 501,
      When you come to buy or sell a car, every state has its own regulations, particularly with rego (registration).
  2. (uncountable, colloquial, Australia, New Zealand) The fee required for such registration.
    David couldn′t drive his car as he hadn′t paid his rego.
  3. (countable, colloquial, Australia, New Zealand) The registration number of a motor vehicle, used by police to access registration details such as the identity of the owner.
    • 1984, Renfrey Clarke, The Picket: Tasmanian Mine Workers Defend Their Jobs, page 84,
      “They also got the regos of the cars. There were two commercial travelers whose cars were trapped inside by the pickets, and they got hit with writs. []
    • 2010, Alex Palmer, The Labyrinth of Drowning, HarperCollins Australia, unnumbered page,
      A line of cars was parked along one side, presumably belonging to the sex workers and their clients. ‘Get their regos,’ Borghini said to one of his people.




From Proto-Indo-European *h₃reǵ-.



present active regō, present infinitive regere, perfect active rēxī, supine rēctum

  1. I rule, govern
  2. I guide, steer
  3. I oversee, manage



Derived terms[edit]

Related terms[edit]



  • rego” in Charlton T. Lewis & Charles Short, A Latin Dictionary, Oxford: Clarendon Press, 1879.



From rege, a monarch , king or queen.

Root: reg-.

Morphemes: reg- + -o (1).


rego (plural regos)

  1. king

Related terms[edit]

rege { n } monarch, king or queen
rega { n } queen
regia { n } kingdom
regira { v } reign
regiro { n } reign
regido { n } royal prince
regida { n } royal princess
regal { adj } regal, royal
viserego { n } viceroy
regonal { adj } kingly
reganal { adj } queenly



rego m (plural regos)

  1. ditch (drainage trench)
  2. (Brazil, vulgar, slang) crack (space between the buttocks)



  1. first-person singular (eu) present indicative of regar