What is the meaning of "ero" in Japanese?

Ero is short form of Eros (エロス).

This word appeared late in Japan. It seemed エロスcould only be read in academic writings. People have invented a hybrid adjective Eroi (エロい), denoting erotic. Ir became popular among civil.

Thus エロ can be noun and adjective.

I’m a 25 year old teacher teaching at boys school & I have colleagues younger than me. I caught one of my students telling her he wanted her as his teacher instead & it hurt my feelings. They compliment her a lot. It makes me jealous. What do I do?

What is the meaning of "ero" in Japanese?

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