subs. (common).An indefinitely long time: cf. GREEK KALENDS.
1850. C. KINGSLEY, Alton Locke, xxvii. I havent heard more fluent or passionate English this MONTH OF SUNDAYS.
1888. BOLDREWOOD, Robbery under Arms, XL. I aint been out of this blessed hole, he says, for a MONTH OF SUNDAYS.
1892. W. E. HENLEY and R. L. STEVENSON, Deacon Brodie, Act i. Sc. 2. It will take no hurt if we put off its discussion till a MONTH OF SUNDAYS.