decapitate
v.
1610s, from French décapiter (14c.), from Late Latin decapitatus past participle of decapitare, from Latin de- "off" (see de-) + caput (genitive capitis) "head" (see capitulum). Related: Decapitated; decapitating.
〔李〕[de-;capit;-atev.] v.斩首 ←cap,capit (L caput)=head 头