Villain once referred to a worker on a country estate, not an evil person. Its modern negative meaning appeared much later.

Per se is the correct phrase. Learn what it means, why per say is wrong, and how to use per se naturally in a sentence.

Learn the difference between both, either, and neither, with clear meanings, short examples, and a simple contrast you can remember.

Affect usually means to influence, and effect usually means a result. Learn the main difference and the less common verb use of effect.

Innermost, outermost, foremost, and hindmost all show an extreme position or rank. Learn the difference with clear examples.