I'm not sure if this is the right place to ask but I'm sure someone will know the answer to my question, which is this - Is the correct spelling Maintainance or Maintenance? Cheers!
stationery sellers used to have fixed shops or stalls in the market (probably near the printers) rather than travelling round the fairs, so they were stationary. Somehow the adjective and noun came to have different spellings, but they were originally the same word.
Useful to remember the E in stationery is for Envelope.