Late 16th century (in an earlier sense). From rebut + -ment, after Anglo-Norman rebotement, rebutement, and Middle French, French †reboutement action of repelling.
Definition of rebutment in US English:
rebutment
nounrɪˈbʌtm(ə)nt
Rebuttal.
Origin
Late 16th century (in an earlier sense). From rebut + -ment, after Anglo-Norman rebotement, rebutement, and Middle French, French † reboutement action of repelling.