Stalker
(noun)
A person who harasses another person by following or contacting them repeatedly.
Origin:
From the verb stalk, which comes from middle english stalker, from old english bestealcian "to go stealthily".
Examples:
- She had a restraining order against her ex-boyfriend, who had been stalking her for months.
- He was arrested for stalking after repeatedly showing up at her workplace.
- The stalker was persistent in trying to contact her even after she blocked his number.
- The police warned her to be careful, as the stalker seemed to be escalating his behavior.
- She was being stalked by an unknown person and was feeling very unsafe.