A false, contrived, or assumed purpose or reason; a pretense.
To employ a pretext, which involves using a false or contrived purpose for soliciting the gain of something else.
An insistence on pure or unmixed forms.
An example of purist language etc.
The desire to use words and forms derived from what is considered the native element in a given language instead of elements considered borrowed or foreign.
An insistence on the traditionally correct way of doing things.