morning coat

a man's cutaway for wear as part of morning dress.

Origin of morning coat

First recorded in 1930–35

Seor Puchol entered, a dark little man who wore a morning-coat and had a hat with a flat brim edged with braid.

Csar or Nothing |Po Baroja Baroja
Nor did the superiority of his morning-coat go well with the sinister touch of melodrama in his set speeches.

Punch or the London Charivari, Vol. 148, January 27, 1915 |Various
There are four kinds of coats which he must have: a morning-coat, a frock-coat, a dress-coat, and an over-coat.

The Gentlemen's Book of Etiquette and Manual of Politeness |Cecil B. Hartley
For his wedding he had bought his first morning-coat and silk hat.

Married Life |May Edginton

Winthrop had had his hands deep in the pockets of his morning-coat during this history.

East Angels |Constance Fenimore Woolson

morning coat

a cutaway frock coat, part of morning dress Also called: tail coat, swallow-tailed coat