From rapid + -ly.

• IPA: /ˈɹæpɪdli/

rapidly

1. With speed; in a rapid manner.

   She packed her case rapidly and hurried out.

   • 1897 December (indicated as 1898), Winston Churchill, chapter V, in The Celebrity: An Episode, New York, N.Y.: The Macmillan Company; London: Macmillan & Co., Ltd., →OCLC ↗:

     We expressed our readiness, and in ten minutes were in the station wagon, rolling rapidly down the long drive, for it was then after nine. We passed on the way the van of the guests from Asquith.

• (with speed) quickly, speedily
• See also Thesaurus:quickly

• French: rapidement
• German: schnell
• Portuguese: rapidamente
• Russian: бы́стро
• Spanish: rápidamente