limber2

 
Pronunciation: /ˈlɪmbə/

noun

  • the detachable front part of a gun carriage, consisting of two wheels and an axle, a pole, and a frame holding one or more ammunition boxes.

verb

[with object]
  • attach a limber to (a gun): (as adjective limbered) a six-horse limbered gun

Origin:

Middle English lymour, apparently related to medieval Latin limonarius from limo, limon- 'shaft'