Assuming around 1800 is "par" for "earliest mention" of an English word by most of our esteemed GR (GR: General Reference) text, is this for any particular reason strongly cut off at that time?
I'm not entirely certain where to post this question, but it seems as if the questions with "oldest reference" seem to hover around late 1700s/early 1800s.
The point of this question is to find out if this is (or there is) a practical age limitation with respect to this on behalf of available texts to define the English Language or that a demarcation point had been defined where English began to be more formalized.
From a comment I posted:
Is the cut-off point of an etymology site related to the availability of a corpus or simply a factor of the state of the English language at the time? If the etymology sources are authoritative, is a source that predates the referenced source by 100 years or more valid?