Origin of how do
Examples from the Web for how do
"How-do, Hanna," said Mr. Evans, reddening slightly beneath his tan.The Sturdy Oak|Samuel Merwin, et al.
Miss Van Ramsden found Belle out, and she went upstairs to 234 say “how-do” to the invalid.The Girl from Sunset Ranch|Amy Bell Marlowe
I didnt scarcely say how-do to you last night, Uncle, she said.Ruth Fielding At Sunrise Farm|Alice B. Emerson
To each man entering he vouchsafed the same greeting—namely, "How-do?"Back Home|Irvin S. Cobb
Now that I'm in touch with you all again, it's almost like saying "How-do?"Carry On|Coningsby Dawson