From Longman Dictionary of Contemporary Englishfortyfor‧ty /ˈfɔːti $ ˈfɔːrti/  ●●● S3 W3 number  1 HMNthe number 402  → the forties3  → be in your forties4  → in the forties —fortieth adjective her fortieth birthdayOrigin forty Old English feowertig, from feower “four” 
                                                    
                                                
