[1] : The Collaborative International Dictionary of English v.0.48

spade \spade\, n. as. spaed; spada; akin to d. spade, g.
   spaten, icel. spaethi, dan.  sw. spade, l. spatha a
   spatula, a broad two-edged sword, a spathe, gr. spa`qh. cf.
   epaulet, spade at cards, spathe, spatula.
   1. an implement for digging or cutting the ground, consisting
      usually of an oblong and nearly rectangular blade of iron,
      with a handle like that of a shovel. "with spade and
      pickax armed." --milton.
      1913 webster

   2. sp. espada, literally, a sword; -- so caused because
      these cards among the spanish bear the figure of a sword.
      sp. espada is fr. l. spatha, gr. spa`qh. see the etymology
      above. one of that suit of cards each of which bears one
      or more figures resembling a spade.
      1913 webster

            "let spades be trumps" she said.     --pope.
      1913 webster

   3. a cutting instrument used in flensing a whale.
      1913 webster

   spade bayonet, a bayonet with a broad blade which may be
      used digging; -- called also trowel bayonet.

   spade handle mach., the forked end of a connecting rod in
      which a pin is held at both ends. see illust. of knuckle
      joint, under knuckle.
      1913 webster
see also:
epaulet spade spathe spatula spade bayonet trowel bayonet 
spade handle knuckle joint knuckle 

Spade >> S Words
Spade, definition of term: Spade
spade_pag1.html

Bayonet >> B Words
Bayonet, definition of term: Bayonet
bayonet_pag1.html