chaser

chaser · noun¹

1. Old French · derived fromchaceür
2. Middle English · inherited fromchaser
3. English todaychaser

Inherited from Middle English chaser, chacer, chasour, borrowed from Old French chaceür, chaceor, from chacier (“to chase, hunt”); later senses from or influenced by chase (“pursue”) + -er. Doublet of chasseur.

chaser · noun²

From chase (“groove; decorate metal”) + -er.

First known use, by meaning

• from 14th c. Something or someone who chases.
• from 14th c. A horse trained for steeplechasing; a steeplechaser.
• from 15th c. A hunter (a horse bred and trained for use in hunting).
• from 18th c. Someone who chases (decorates) metal; a person who decorates metal by engraving or embossing.
• from 19th c. A tool used for cleaning out screw threads, either as an integral part of a tap or die to remove waste material produced by the cutting tool, or as a separate tool to repair damaged threads.