quiver

Etymology 1

From Middle English quiver, from Anglo-Norman quivre, from Old Dutch cocare (source of Dutch koker, and cognate to Old English cocer (“quiver, case”)), from Proto-West Germanic *kukur (“container”), said to be from Hunnic, possibly from Proto-Mongolic *kökexür (“leather vessel for liquids”); see there for more. Replaced early modern cocker, the inherited reflex of that West Germanic word.

noun

1. (weaponry) A container for arrows, crossbow bolts or darts, such as those fired from a bow, crossbow or blowgun.
   Arrows were carried in quiver, called also an arrow case, which served for the magazine, arrows for immediate use were worn in the girdle. 1786, Francis Grose, A Treatise on Ancient Armour and Weapons, page 39
2. (figurative) A ready storage location for figurative tools or weapons.
   He's got lots of sales pitches in his quiver.
3. (obsolete) A vulva.
4. (obsolete) The collective noun for cobras.
5. (mathematics) A multidigraph.

Etymology 2

From Middle English quiver, cwiver, from Old English *cwifer, probably related to cwic (“alive”).

adj

1. (archaic) Nimble, active.

Etymology 3

From Middle English quiveren, probably from the adjective.

verb

1. (intransitive) To shake or move with slight and tremulous motion.