How do you spell that French word that means neckline (as of a gown) delecottage or something like that?

Question

How do you spell that French word that means neckline (as of a gown) delecottage or something like that?

Answer 1

décolleté

Answer 2

decollete, with accents facing to the right on the first and last e's and it implies to the "low neck" on a dress

Answer 3

décolletage