the GNU version of the Collaborative International Dictionary of English
the 2d pers. sing. imp. of do.
The Century Dictionary and Cyclopedia
n. The second person singular of the preterit of do, do.
Word Usage
"Not a word didst thou mutter to me in 1814, of the publication of the MS., and did I not deem thy reckless enterprise suitably punished by the complaints of our"