"small, spinning wheel with radial points on a spur," mid-14c., rouel, from Old French roelle, roel (Modern French rouelle), "small wheel" (see roulette).
1590s, "duly," from due (adj.). In reference to points of the compass, "directly, exactly" (as in due east) it is attested from c. 1600, originally nautical, from notion of "fitting, rightful."
"personal record of events, narrative of the facts or events of the life of a person or a phase of history written from personal knowledge or observation upon points about which the writer is specially informed," 1650s, plural of memoir.
"expressing a threat," 1530s, from French minatoire, from Late Latin minatorius "threatening," from minat-, stem of Latin minari "to threaten; jut, project," from minæ "threats; projecting points," from PIE root *men- (2) "to project." Related: Minatorially.