In the original Greek of Euclid's Elements the corollaries to the propositions are called porisms.

His gait was something between a slouch and a skulk.

Energy has seldom been found where we need it when we want it. Ancient nomads, wishing to ward off the evening chill and enjoy a meal around a campfire, had to collect wood and then spend time and effort coaxing the heat of friction out from between sticks to kindle a flame.

Uninstalling is the inverse of installation.