adj. & n.
--adj. literary 1 many and various (manifold vexations).
2 having various forms, parts, applications, etc.
3 performing several functions at once.
--n.
1. a thing with many different forms, parts, applications, etc.
2 Mech. a pipe or chamber branching into several openings.
Derivatives:
manifoldly adv. manifoldness n.
Etymology: OE manigfeald (as MANY, -FOLD)