worm
worm-and-rack
worm-and-rack-driven
worm-and-sector
worm-configured
worm-gear
wormgear
worm-hole
worm-milling
wormscrew
  worm-threading
wormwheel
wormwheel-to-wormscrew
worn
worn-in
worn-out
worn-tool
worse
worthless
would
wound