bracelet (n.)

before a vowel, brachi-, word-forming element meaning "arm, of the upper arm, pertaining to the upper arm and," from Latinized form of Greek brakhion "arm," perhaps originally "upper arm," literally "shorter," from brakhys "short" (from PIE root *mregh-u- "short"), in contrast to the longer forearm.

"ornamental ring for an ankle," 1810, from ankle, with diminutive suffix -let, after bracelet, etc.