gland (n.) Look up gland at Dictionary.com
1690s, from French glande (Old French glandre "a gland," 13c.), from Latin glandula "gland of the throat, tonsil," diminutive of glans (genitive glandis) "acorn, nut; acorn-shaped ball," from PIE root *gwele- (2) "acorn" (cognates: Greek balanos, Armenian kalin, Old Church Slavonic zelodi "acorn;" Lithuanian gile "oak"). Earlier English form was glandula (c. 1400); Middle English also had glandele "inflamed gland" (c. 1400). Extended from tonsils to glands generally.