of Undertake
- Newage Dictionary DB (imperfect) (imp.) (imperfect)
Did undertake.
- Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874. (p.t.) (past tense)

Usage examples:

He undertook to keep it there and destroy it on the spot, instead of having to pursue it everywhere without ever being sure of getting at it.
- A Popular History of France From The Earliest Times Volume I. of VI. by Francois Pierre Guillaume Guizot
Conscious that he engaged in the cause of his fellow- creatures solely upon the sense of his duty as a Christian, he seems to have supposed either that he had done nothing extraordinary to merit such a distinction, or to have been fearful lest the acceptance of it should bring a stain upon the motive, on which alone he undertook it.
- The History of the Rise, Progress and Accomplishment of the Abolition of the African Slave Trade by the British Parliament (1808), Vol. I by Thomas Clarkson
He might be quite willing to do you a good turn if you undertook to answer no questions about him.
- Hyacinth 1906 by George A. Birmingham