" I drest plainly; I was seen at no places of idle diversion. I never went out a fishing or shooting; a book, indeed, sometimes debauch’d me from my work, but that was seldom, snug,

I ;have neveer ;heard "snug" used this way, to mean hidden from public view, but it is the sixth meanting given in my dictionary.

In the UK the noun 'snug' was used as recently as twenty years ago, possibly still is in some areas, for a small private room in a public house. The room was used by respectable unaccompanied ladies who did not wish to mix with the men in the public bar but valued their port and lemon of an evening. They were tucked away unseen in their little room, in the Snug.

In some old pubs you can still see 'Snug' written on a brass plate on the door to a small room off the bar.