Origin of thusly
Some speakers and writers regard thusly as a pointless synonym for thus, and they avoid it or use it only for humorous effect.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for thusly
The next time I spoke to him on the phone, he greeted me with thusly: “Hello, you prick.”Howard Kurtz Remembers Mike Wallace, Legendary CBS Newsman, Dead at 93
April 8, 2012
Thusly I got to the edge of the herd, tumbled off'n the last one, an' rescooed the gurl.The Light of Western Stars
She read it out, pronouncing it thusly, "Return of Percy Fone."
Transcriber's Note: Italics in the text are indicated by the use of an underscore as delimiter, thusly.The Life of John Sterling
Biggs understood, and thusly spoke to themIn accents somewhat British and prefixed with a "Hem!"
Word Origin and History for thusly
Online Etymology Dictionary, © 2010 Douglas Harper