I. rü-ˈlet noun
Etymology: French, literally, small wheel, from Old French roelete, diminutive of roele wheel, rowel, from Late Latin rotella, diminutive of Latin rota wheel — more at roll
Date: 1745
1.
a. : a gambling game in which players bet on which compartment of a revolving wheel a small ball will come to rest in
b. : something involving a high degree of chance and unpredictability
2.
a. : any of various toothed wheels or disks (as for producing rows of dots on engraved plates or for making short consecutive incisions in paper to facilitate subsequent division)
b. : tiny slits between rows of stamps in a sheet that are made by a roulette and serve as an aid in separation — compare perforation
II. transitive verb
( rou·lett·ed ; rou·lett·ing )
Date: 1867
: to make roulettes in