soundly

Etymology

c. 1400s, from sound + -ly. Originally meaning "safely", the present sense came in the 16ᵗʰ century.

adv

1. In a thorough manner; in manner free of defect or deficiency.
   He was soundly thrashed by the semi-professional boxer.
   The wedding company, fatigued with their enjoyment of the previous night, slept soundly late into the next morning. 1899, William George Aston, A History of Japanese Literature, page 272
   My gold carried little weight with him, he was sincerely fond of me and consequently rated me soundly for all indiscretions, declaring I would regret wasting the best years of my life and deadening my vast talents […] 1911, L. D. Biagi, The Centaurians, Ch. I