Like Jill, I think it says something like "London - Hereford Churtsey" but ...
I am wondering whether the inserted word refers to the entry above or the entry below. Perhaps to the entry below as, according to Multimap, there are two places called Goodnestone in Kent - one near Faversham, and the other ESE of Canterbury/WSW of Sandwich - so it could perhaps be a word indicating which of the two it was. The only problem is that I can't see an appropriately named place near either ... The word might start with an 'R' or a 'P' (there isn't a 'P' in the extract for comparison). It looks rather like the semi-obscured 'R' which begins 'Rutlandsh Oakham' in the line above but there doesn't seem to be a downstroke.
JAP