1. To apply to a moral purpose, or to explain in a moral sense.

This fable is moralized in a common proverb.

Did he not moralize this spectacle?

2. To furnish with manners or examples.

3. To render moral or virtuous; to correct the morals of.

It had a large share in moralizing the poor white people of the country.

[This sense, though the most strictly etymological, is rare, or to make moral reflections.]