Which pertains to competence: Peter's Principle or Gresham's Law?
Etymology, Etymology, and more Etymology
as well as grammar, usage, euphemism, slang, jargon, semantics (meaning), linguistics, neologism, idiom, word origin, syntax, dialect, lexicon (vocabulary), diction, pidgin, synonym, antonym, homonym, cant, argot, lingo, and redundancy.

The critically-acclaimed board game MooT consists of tough questions about the nuances of the English language.
Answer: Peter's Principle
Gresham's Law: Bad money chases out good money. Peter Priciple: In a hierarchy, every employee tends to rise to his level of incompetence.
Note: It's better to start at your level of incompetence (and learn work-arounds), than to rise to it.
Copyright 1998-2006 Blair Arts Ltd. All rights reserved.