Etymology: Middle English, from Anglo-French estuffes goods, from estuffer to fill in (with rubble), furnish, equip, of Germanic origin; akin to Old High German stopfōn to stop up, from Vulgar Latin *stuppare — more at stop
Date: 14th century
1: materials, supplies, or equipment used in various activities: as aobsolete: military baggage b:personal property 2: material to be manufactured, wrought, or used in construction <clear half-inch pine stuff — Emily Holt> 3: a finished textile suitable for clothing; especially: wool or worsted material 4 a: literary or artistic production b: writing, discourse, talk, or ideas of little value :trash 5 a: an unspecified material substance or aggregate of matter <volcanic rock is curious stuff>b: something (as a drug or food) consumed or introduced into the body by humans c: a matter to be considered <the truth was heady stuff><long-term policy stuff>d: a group or scattering of miscellaneous objects or articles <pick that stuff up off the floor>; also: nonphysical unspecified material <conservation and…all kinds of good stuff — Eric Korn> 6 a: fundamental material :substance<the stuff of greatness>b: subject matter <a teacher who knows her stuff> 7: special knowledge or capability <showing their stuff> 8 a: spin imparted to a thrown or hit ball to make it curve or change course b: the movement of a baseball pitch out of its apparent line of flight : the liveliness of a pitch <greatest pitcher of my time…had tremendous stuff — Ted Williams> 9:dunk shot