Linguistic protectionism

Linguistic protectionism is any state policy introduced to protect a given language from the expansion of a "stronger" language (usually a language with a greater number of speakers).  The expansion of the "stronger" language may take two forms: (1) people switching to the "stronger" language and (2) people using words from the "stronger" language in the context of the "weaker" one (i.e. using loanwords excessively).  The opposition to the latter form of language expansion is known as