paynize

from The Century Dictionary.

• To harden and preserve, as wood, by a process consisting in placing the material to be treated in a close chamber, depriving it of its air by means of an air-pump, and then injecting a solution of sulphid of calcium or of barium, following this with a solution of sulphate of lime.

from the GNU version of the Collaborative International Dictionary of English.

• transitive verb To treat or preserve, as wood, by a process resembling kyanizing.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• verb dated, transitive To treat or preserve (wood etc.) by a process resembling kyanization.