noun / verb
gown
GOWN/ɡaʊn/
A long outer garment that covers the body loosely.
She wears a flowing gown to the formal dinner tonight.

Etymology
The older word covered robes, coats, and religious habits. English narrowed this broad garment term toward formal dresses and robes marking an office or special purpose.
In context
his grizzled hair flying and his long black gown floating behind him. He was clad in the dress of a respectable citizen
More examples
- Graduates wear caps and gowns during the ceremony.
- The nurse helps him tie his hospital gown.
- The surgeons gown up before entering the operating room.
Forms
gown · gowns · gowned · gowning