participialize

from The Collaborative International Dictionary of English v.0.48

Participialize \Par`ti*cip"i*al*ize\, v. t. [imp. & p. p.
   {Participialized}; p. pr. & vb. n. {Participializing}.]
   To form into, or put in the form of, a participle. [R.]
   [1913 Webster]