It'll Sweep Up Our Skeleton Bones

For no good reason at all, here is a list of words that I think the more often use of which would make the world a better place.

fatuous
carom
disaggregation
sedimentary
snide
happenstance
savoir-faire
eluctation
finagle
traipse
moribund
malleable
natatory
lathe
boreal
sidereal
pie

Now for the good reason of there being a diametric list above, here is a list of words that I think the less often use of which would make the world a better place
discombobulate
fraction
faction
fiction
friction
affliction
defection
deflection
affection
infliction
Basically any word with the f-[glide]-i/ection sequence
pants
agreeance
admixture