liberalism In the classical sense, liberalism is *libertarianism; though
the misleading etymological route of ‘liberal’ relates to generosity rather
than *liberty. People sometimes assert or assume that classical liberalism is
not as *extreme or as theoretically rigorous as libertarianism. But there were
some classical liberals who were, at least for some time, more or less *anarchists (though
not always using or accepting the label, e.g., Lysander Spooner [1808-1887], Gustave de Molinari [1819-1912],
Herbert Spencer [1820-1903], Auberon Herbert [18381906)], Wordsworth Donisthorpe
[1847-1913], Benjamin Tucker
[1854-1939]) and some had elaborate theories (often being the same
people). And there are many (most?) libertarians who are not anarchists and many
have a paucity of theory (often being the same people). It might still be
suggested that a distinction can be made in that classical liberalism is
broader than libertarianism because it goes well beyond *minarchy. But many
self-described ‘libertarians’ go well beyond minarchy too, so this would mean
rejecting their self-descriptions for no apparent reason beyond attempting to
introduce a distinction.

The main reason for using ‘libertarian’ instead of ‘liberal’
is the risk of confusion with ‘modern liberal’ (especially in the U.S.). And
‘classical liberal’ can sound obscure or old-fashioned. The rise of modern
liberalism began as those who called themselves ‘liberals’ started viewing the *state as also a route
to liberty, but often in some alternative sense of that word, rather than
merely the main obstacle. This has evolved, or degenerated, into an increasing *ideological muddle that
includes parts of classical liberalism, *democracy, *egalitarianism and *political
correctness.

A Dictionary of Libertarianism