Erector (noun)

1. A person or machine that erects or raises something, especially a building or structure.
2. A muscle that raises a part of the body, especially one that raises the hair on the skin as a result of fear or other emotion.

Origin:

Late middle english: from latin erector, from e- (variant of ex-) "out of" + rector "ruler, director".

Examples:

1. He worked as an erector of steel structures.
2. The building was constructed by a team of skilled erectors.
3. The erector muscles of the scalp are responsible for goosebumps.
4. The body has several erector muscles that control the movement of the spine.
5. The erector muscles are responsible for maintaining an upright posture.