I tried to be cute and thought the "nul" could be amputated. Looking up "utative" brought up a lot of sites in which
"putative" had the "p" separated from the "utative"

P.S. I went back to the site, and found an e-mail address to its creator. I sent him an e-mail very sweetly asking him to send us a definition of "nulutative"..

P.P.S If any of you want to add your pleas to mine, the address is: johnw@gnu.org