Creosote (in Appendix above) is a "wood saver"
creosote

SYLLABICATION: cre搗新ote
PRONUNCIATION: kr-st
NOUN: 1. A colorless to yellowish oily liquid containing phenols and creosols, obtained by the destructive distillation of wood tar, especially from the wood of a beech, and formerly used as an expectorant in treating chronic bronchitis. 2. A yellowish to greenish-brown oily liquid containing phenols and creosols, obtained from coal tar and used as a wood preservative and disinfectant. It can cause severe neurological disturbances if inhaled in strong concentrations.
TRANSITIVE VERB: Inflected forms: cre搗新ot搪d, cre搗新ot搏ng, cre搗新otes
To treat or paint with creosote.
ETYMOLOGY: German Kreosot : Greek kreas, flesh; see kreu- in Appendix I + Greek str, preserver (from szein, to save; see teu- in Appendix I).