So here we go:
The noun. Wooow, both countable and uncountable! The former: "Any cyclic action or process". The latter "The sport of riding and racing cycles, especially bicycles". Also present participle of cycle.
Cycle (We seem to like to cycle A LOT!)
(1). An interval of space or time in which one set of events or phenomena is completed; (2) the cycle of the seasons, or of the year; (3) A complete rotation of anything. (4) A process that returns to its beginning and then repeats itself in the same sequence; (5&6) In music and poetry. (7) A programme on a washing machine, dishwasher, or other such device; (11) A chain whose boundary is zero; (13) A long period of time; etc...
From Late Latin cyclus, from Ancient Greek κύκλος [kúklos], from Proto-Indo-European kʷékʷlos (Doublet of wheel* - NO IDEA how that happened!) Which, on top of everything, is reduplicated derivative of kʷel-. Of course it is!
This was the "long" version.
"Fast" would be: cycling: jazda na rowerze.
Has it rained words enough?
(Next post of the challenge is postponed, as 1st of May seems to be a BreakDay of @brianball's list of 20 topics Streak. We are left with a question: Will George RR Martin write an ending of The Song of Ice & Fire or is he too bored/too rich/too old?)