1) A tax on movement through a forest.
It is defined more precisely in a Pickering document: 1619-21 Whoe receiveth the Chiminage yearlie within the foreste, namelye a tax upon cartes & cariages traveylinge over the foreste in fence moneth formerlie sometimes xiijs iiijd p. ann. sometimes more, Pickering. The word occurs frequently in earlier records but in French or Latin: 1314 Et de xiijs iiijd de cheminagio ibidem hoc anno, Pickering
n.d. par la ou il deivent ester quites de chiminage selone la chartre, Galtres.