PERIOD (Gr. irepioSos, a going or way

See also:

• ROUND (O. Fr. rond, Lat. rotundus, the Fr. is the source also of Du. rond; Ger., Swed., Dan. and Nor. rond)

round,

See also:

• CIRCUIT (Lat. circuitus, from circum, round, and ire, to go)

circuit, aepi, round, and &

See also:

• SIS (anc. Sision or Siskia, later Flaviopolis or Flavias)

Sis, way, road)  , a circuit or course of time, a cycle; particularly the duration of time in which a planet revolves round its sun, or a satellite round its primary, a definite or indefinite recurring interval of time marked by some special or peculiar character, e.g. in history, literature, art, &c.; it is so used of a division of geological time . Particular uses of the word are for the various phases through which a disease passes, the termination or conclusion of any course of events, the pause at the end of a completed sentence, and the mark (.) used to signify the same (see PUNCTUATION) .