Source : Webster's Revised Unabridged Dictionary (1913)

Hourly \Hour"ly\, a.
   Happening or done every hour; occurring hour by hour;
   frequent; often repeated; renewed hour by hour; continual.

         In hourly expectation of a martyrdom.    --Sharp.

Hourly \Hour"ly\, adv.
   Every hour; frequently; continually.

         Great was their strife, which hourly was renewed.
                                                  --Dryden.

Source : WordNet®

hourly
     adj : occurring every hour or payable by the hour; "hourly
           chimes"; "hourly pay"
     adv : every hour; "daily, hourly, I grew stronger" [syn: {by the
           hour}]