Using the same word for an activity and those engaged in it

[Jon_Roland]

I am looking for scholarly articles on the common English idiom, especially in the 18th century, of using the same word for an activity and those engaged in it. Some examples include:
service
assembly
movement
wedding
viking
congregation
aggregation
delegation
march
ministry
court
militia
hunt
police
hospital
university
Indeed, it appears that in the 18th century almost any word for an activity was commonly also used to refer to those engaged in it. It seems that this should have been thoroughly investigated, but would like cites to such studies.

[Anglika]

I take it that you have done searches via Google Scholar?

[Keralite]

I take it that you have done searches via Google Scholar?

Hi Anlika


What it mean by "I take it that..." . Is it mean "I assume that..."


Yours help highly appreciated and thanks in advance