No; I wouldn't demean myself by fighting with him.
"Andy Grant's Pluck"
Horatio Alger
You must not think I was severe, but I do like you so much I hated for you to demean yourself.
"Molly Brown's Orchard Home"
Nell Speed
"Well, just to talk this over, and for my darling's sake, I will for once demean myself;" and Ann Packet, red in the face with excitement, seated herself on the verge of the horsehair chair.
"Mattie:--A Stray (Vol 3 of 3)"
Frederick William Robinson