It is my experience that not too many woodworkers are familiar with this strange word. As far as I can determine, the word Rhykenology was first coined by a certain Elliot Sayward, back in the mid seventies. He recognized that there was no general term for plane technology, use and history. The term is based on the Greek word for plane or scraper, rhykane, hence rhykenology. The word can loosely be defined as the study of planes.
-- Div @ the bottom end of Africa. "A woodworker's sharpest tool should be his mind."