Wuss (noun)

A weak, timid, or unmanly person.

Origin:

The word wuss is a slang word, its origin is uncertain but it is thought to be a shortened form of the word wussy, which is a variation of the word weakling. the word first appeared in print in the 1960s.

Examples:

1. He was called a wuss for being afraid of heights.
2. He was a wuss, he couldn't even lift the weight.
3. The wuss was too scared to go on the roller coaster.
4. He was a wuss, he always backed out of the fight.
5. The wuss was always the last one to finish the race.