"Literally" and "Decimate" misuse

Solution 1:

The Merriam-Webster Online dictionary give these senses:

literally
2 : in effect : virtually <will literally turn the world upside down to combat cruelty or injustice — Norman Cousins>

with the following usage note:

Since some people take sense 2 to be the opposite of sense 1, it has been frequently criticized as a misuse. Instead, the use is pure hyperbole intended to gain emphasis, but it often appears in contexts where no additional emphasis is necessary.

and for decimate, they have the following senses, with no usage note:

decimate
3 a : to reduce drastically especially in number <cholera decimated the population> b : to cause great destruction or harm to <firebombs decimated the city> <an industry decimated by recession>

Solution 2:

The New Oxford American Dictionary reports the following note in the usage section:

In recent years, an extended use of literally (and also literal) has become very common, where literally (or literal) is used deliberately in nonliteral contexts, for added effect: they bought the car and literally ran it into the ground. This use can lead to unintentional humorous effects (we were literally killing ourselves laughing) and is not acceptable in formal English.

In formal sentences, literally should be used as in I told him I never wanted to see him again, but I didn't expect him to take it literally.

Solution 3:

With regards to decimation, the original meaning is derived from a practice in the military of Ancient Rome. Quoted from this page:

A unit selected for punishment by decimation was divided into groups of ten; each group drew lots (Sortition), and the soldier on whom the lot fell was executed by his nine comrades, often by stoning or clubbing. The remaining soldiers were given rations of barley instead of wheat and forced to sleep outside of the Roman encampment.

Because the punishment fell by lot, all soldiers in the group were eligible for execution, regardless of the individual degree of fault, or rank and distinction.

Indeed, this word has been so greatly abused over time (perhaps through ignorance) that its more general meaning of "to destroy" or "to severely harm" is now virtually accepted.