Bible Encyclopedias
Chaff

1911 Encyclopedia Britannica

(from the A.S. ceaf, allied to the O. High Ger. cheva, a husk or pod), the husks left after threshing grain, and also hay and straw chopped fine as food for cattle; hence, figuratively, the refuse or worthless part of anything. The colloquial use of the word, to chaff, in the sense of to banter or to make fun of a person, may be derived from this figurative sense, or from "to chafe," meaning to vex or irritate.

Bibliography Information
Chisholm, Hugh, General Editor. Entry for 'Chaff'. 1911 Encyclopedia Britanica. https://www.studylight.org/​encyclopedias/​eng/​bri/​c/chaff.html. 1910.