horo-, hour- +

(Greek > Latin: hour, time; period of time, season, any limited time)

hourglass figures (lexicomedy)
Figures with the sands of time usually ending up in the bottom half.
hourly
1. Occurring every hour; such as, hourly chimes.
2. Frequent or continual: "We kept a record of our hourly changes for our project."
3. By the hour as a unit: "She received hourly payments for the time she spent working on the job."