Webster's Revised Unabridged Dictionary · 1913

shirtwaist

shirtwaist , noun

[shirt + waist; see waist, n.]

1.
A woman's blouse resembling a men's shirt in cut and style; -- in England called a blouse.
2.
a type of woman's dress with a bodice tailored like a shirt; -- also called shirt dress, shirtwaist dress, and shirtwaister. — [RHUD]

Also: Shirt waist