Why this word is great
OBVIATION — [Noun] The act of preventing or removing a need, difficulty, or obstacle. From Middle English obviacioun, from Medieval Latin obviātiō, from Latin obviāre ("to meet, withstand, prevent"), from ob- ("against") + viāre ("to go, travel"). Unlike "prevention," which broadly stops an event, or "elimination," which removes an extant nuisance, obviation is the subtler art of rendering a potential problem moot before it can articulate its claim. It is the master mason whose single keystone makes the buttress unnecessary, the diplomatic phrase that dissolves a gathering tension, the precise oil applied to a hinge—a frictionless grace that leaves no trace of the struggle it rendered unnecessary.