a native English suffix meaning “of so many parts,” or denoting multiplication by the number indicated by the stem or word to which the suffix is attached: twofold; manifold.
Origin: Middle English;Old English-fald, -feald, cognate with Old Frisian,Old Saxon-fald,German-falt,Old Norse-faldr,Gothic-falths, all representing the Germanic base of fold1; akin to Greek-ploos, -plous (see haplo-, diplo-), Latin-plus (see simple, double, etc.), -plex-plex
multiplicative suffix, from O.E. -feald, related to O.N. -faldr; Ger. -falt; Goth. falþs; Gk. -paltos, -plos; L. -plus. Crowded out in Eng. by Latinate double, triple, etc., but still in manifold (q.v.).