rapier

Etymology 1

Borrowed from Middle French rapiere, from Middle French (espee) rapiere, from Old French rapiere, raspiere, from Spanish raspadera (“poker; raker; scraper”), from Spanish raspar (“to scrape”), of Germanic origin. More at rasp.

noun

1. A slender, straight, sharply pointed sword (double-edged, single-edged or edgeless).
   The man beside him with the earrings and the big black case proceeded to unlock it. He took out of it two long Italian rapiers, with splendid steel hilts and blades, which he planted point downwards in the lawn. 1911, G. K. Chesterton, “The Sins of Prince Saradine”, in The Innocence of Father Brown

adj

1. Extremely sharp.
2. Cutting; employing keen wit.
   John is very quick on his feet during interviews by using his rapier responses.

Etymology 2

adj

1. comparative form of rapey: more rapey