Etymology
Advertisement

bur (n.)

"prickly seed vessel of some plants," c. 1300, burre, from a Scandinavian source (compare Danish borre, Swedish hard-borre, Old Norse burst "bristle"), from PIE *bhars- (see bristle (n.)). Transferred 1610s to "rough edge on metal," which might be the source of the sense "rough sound of the letter -r-" (see burr). Also the name given to various tools and appliances.

updated on August 30, 2017

Advertisement
Advertisement
Definitions of bur from WordNet
1
bur (n.)
seed vessel having hooks or prickles;
Synonyms: burr
bur (n.)
small bit used in dentistry or surgery;
Synonyms: burr
2
bur (v.)
remove the burrs from;
Synonyms: burr
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.