thick and threefold
Webster's Dictionary (GCIDE)
Thick \Thick\ (th[i^]k), adv. [AS. [thorn]icce.]
1.Frequently; fast; quick. [1913 Webster]
2.Closely; as, a plat of ground thick sown. [1913 Webster]
3.To a great depth, or to a greater depth than usual; as, land covered thick with manure. [1913 Webster]
Thick and threefold, in quick succession, or in great numbers. [Obs.] --L'Estrange. [1913 Webster]